Home / 110,957.16-153,139.14-87,264.12

Finding the Fourth Proportional to 110,957.16, 153,139.14 and 87,264.12

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Solution

The fourth proportional to 110,957.16, 153,139.14 and 87,264.12 is: 120,438.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,957.16 : 153,139.14 = 87,264.12 : x
  2. Step 2: Convert to fraction form
    110,957.16/153,139.14 = 87,264.12/x
  3. Step 3: Cross multiply
    110,957.16x = 153,139.14 × 87,264.12
  4. Step 4: Simplify right side
    110,957.16x = 13,363,552,289.66
  5. Step 5: Solve for x
    x = 13,363,552,289.66/110,957.16
  6. Step 6: Final answer
    x = 120,438.85

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1.5x scale

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.