Home / 112,565,108.84-168,876,774.36-65,917,989.28

Finding the Fourth Proportional to 112,565,108.84, 168,876,774.36 and 65,917,989.28

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Solution

The fourth proportional to 112,565,108.84, 168,876,774.36 and 65,917,989.28 is: 98,894,031.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,565,108.84 : 168,876,774.36 = 65,917,989.28 : x
  2. Step 2: Convert to fraction form
    112,565,108.84/168,876,774.36 = 65,917,989.28/x
  3. Step 3: Cross multiply
    112,565,108.84x = 168,876,774.36 × 65,917,989.28
  4. Step 4: Simplify right side
    112,565,108.84x = 11,132,017,401,481,268
  5. Step 5: Solve for x
    x = 11,132,017,401,481,268/112,565,108.84
  6. Step 6: Final answer
    x = 98,894,031.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.