Home / 125,108.82-172,607.28-71,355.18

Finding the Fourth Proportional to 125,108.82, 172,607.28 and 71,355.18

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Solution

The fourth proportional to 125,108.82, 172,607.28 and 71,355.18 is: 98,445.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,108.82 : 172,607.28 = 71,355.18 : x
  2. Step 2: Convert to fraction form
    125,108.82/172,607.28 = 71,355.18/x
  3. Step 3: Cross multiply
    125,108.82x = 172,607.28 × 71,355.18
  4. Step 4: Simplify right side
    125,108.82x = 12,316,423,533.71
  5. Step 5: Solve for x
    x = 12,316,423,533.71/125,108.82
  6. Step 6: Final answer
    x = 98,445.69

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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.