Home / 145,117.87-217,620.76-56,359.38

Finding the Fourth Proportional to 145,117.87, 217,620.76 and 56,359.38

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Solution

The fourth proportional to 145,117.87, 217,620.76 and 56,359.38 is: 84,517.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,117.87 : 217,620.76 = 56,359.38 : x
  2. Step 2: Convert to fraction form
    145,117.87/217,620.76 = 56,359.38/x
  3. Step 3: Cross multiply
    145,117.87x = 217,620.76 × 56,359.38
  4. Step 4: Simplify right side
    145,117.87x = 12,264,971,108.73
  5. Step 5: Solve for x
    x = 12,264,971,108.73/145,117.87
  6. Step 6: Final answer
    x = 84,517.30

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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.