Home / 155,796.10-233,767.05-81,000.70

Finding the Fourth Proportional to 155,796.10, 233,767.05 and 81,000.70

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Solution

The fourth proportional to 155,796.10, 233,767.05 and 81,000.70 is: 121,538.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,796.10 : 233,767.05 = 81,000.70 : x
  2. Step 2: Convert to fraction form
    155,796.10/233,767.05 = 81,000.70/x
  3. Step 3: Cross multiply
    155,796.10x = 233,767.05 × 81,000.70
  4. Step 4: Simplify right side
    155,796.10x = 18,935,294,686.94
  5. Step 5: Solve for x
    x = 18,935,294,686.94/155,796.10
  6. Step 6: Final answer
    x = 121,538.95

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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.