Home / 126,125.10-174,045.69-72,406.62

Finding the Fourth Proportional to 126,125.10, 174,045.69 and 72,406.62

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Solution

The fourth proportional to 126,125.10, 174,045.69 and 72,406.62 is: 99,917.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,125.10 : 174,045.69 = 72,406.62 : x
  2. Step 2: Convert to fraction form
    126,125.10/174,045.69 = 72,406.62/x
  3. Step 3: Cross multiply
    126,125.10x = 174,045.69 × 72,406.62
  4. Step 4: Simplify right side
    126,125.10x = 12,602,060,138.47
  5. Step 5: Solve for x
    x = 12,602,060,138.47/126,125.10
  6. Step 6: Final answer
    x = 99,917.15

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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.