Home / 112,126.48-154,730.64-61,825.12

Finding the Fourth Proportional to 112,126.48, 154,730.64 and 61,825.12

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Solution

The fourth proportional to 112,126.48, 154,730.64 and 61,825.12 is: 85,316.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,126.48 : 154,730.64 = 61,825.12 : x
  2. Step 2: Convert to fraction form
    112,126.48/154,730.64 = 61,825.12/x
  3. Step 3: Cross multiply
    112,126.48x = 154,730.64 × 61,825.12
  4. Step 4: Simplify right side
    112,126.48x = 9,566,240,385.68
  5. Step 5: Solve for x
    x = 9,566,240,385.68/112,126.48
  6. Step 6: Final answer
    x = 85,316.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.