Home / 177,520.90-266,432.55-72,415.30

Finding the Fourth Proportional to 177,520.90, 266,432.55 and 72,415.30

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Solution

The fourth proportional to 177,520.90, 266,432.55 and 72,415.30 is: 108,684.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,520.90 : 266,432.55 = 72,415.30 : x
  2. Step 2: Convert to fraction form
    177,520.90/266,432.55 = 72,415.30/x
  3. Step 3: Cross multiply
    177,520.90x = 266,432.55 × 72,415.30
  4. Step 4: Simplify right side
    177,520.90x = 19,293,793,038.02
  5. Step 5: Solve for x
    x = 19,293,793,038.02/177,520.90
  6. Step 6: Final answer
    x = 108,684.63

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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.