Home / 112,774.25-169,108.40-65,402.80

Finding the Fourth Proportional to 112,774.25, 169,108.40 and 65,402.80

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Solution

The fourth proportional to 112,774.25, 169,108.40 and 65,402.80 is: 98,073.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,774.25 : 169,108.40 = 65,402.80 : x
  2. Step 2: Convert to fraction form
    112,774.25/169,108.40 = 65,402.80/x
  3. Step 3: Cross multiply
    112,774.25x = 169,108.40 × 65,402.80
  4. Step 4: Simplify right side
    112,774.25x = 11,060,162,536.51
  5. Step 5: Solve for x
    x = 11,060,162,536.51/112,774.25
  6. Step 6: Final answer
    x = 98,073.48

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1.5x scale

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.