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Finding the Fourth Proportional to 181,807.80, 272,711.70 and 125,820.60

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Solution

The fourth proportional to 181,807.80, 272,711.70 and 125,820.60 is: 188,730.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,807.80 : 272,711.70 = 125,820.60 : x
  2. Step 2: Convert to fraction form
    181,807.80/272,711.70 = 125,820.60/x
  3. Step 3: Cross multiply
    181,807.80x = 272,711.70 × 125,820.60
  4. Step 4: Simplify right side
    181,807.80x = 34,312,749,721.02
  5. Step 5: Solve for x
    x = 34,312,749,721.02/181,807.80
  6. Step 6: Final answer
    x = 188,730.90

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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.