Home / 131,532.02-181,513.95-71,102.70

Finding the Fourth Proportional to 131,532.02, 181,513.95 and 71,102.70

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Solution

The fourth proportional to 131,532.02, 181,513.95 and 71,102.70 is: 98,121.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,532.02 : 181,513.95 = 71,102.70 : x
  2. Step 2: Convert to fraction form
    131,532.02/181,513.95 = 71,102.70/x
  3. Step 3: Cross multiply
    131,532.02x = 181,513.95 × 71,102.70
  4. Step 4: Simplify right side
    131,532.02x = 12,906,131,932.67
  5. Step 5: Solve for x
    x = 12,906,131,932.67/131,532.02
  6. Step 6: Final answer
    x = 98,121.60

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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.