Home / 131,285.02-181,177.50-74,700.04

Finding the Fourth Proportional to 131,285.02, 181,177.50 and 74,700.04

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Solution

The fourth proportional to 131,285.02, 181,177.50 and 74,700.04 is: 103,088.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,285.02 : 181,177.50 = 74,700.04 : x
  2. Step 2: Convert to fraction form
    131,285.02/181,177.50 = 74,700.04/x
  3. Step 3: Cross multiply
    131,285.02x = 181,177.50 × 74,700.04
  4. Step 4: Simplify right side
    131,285.02x = 13,533,966,497.10
  5. Step 5: Solve for x
    x = 13,533,966,497.10/131,285.02
  6. Step 6: Final answer
    x = 103,088.43

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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.