Home / 102,097.13-153,151.16-31,981.91

Finding the Fourth Proportional to 102,097.13, 153,151.16 and 31,981.91

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Solution

The fourth proportional to 102,097.13, 153,151.16 and 31,981.91 is: 47,974.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,097.13 : 153,151.16 = 31,981.91 : x
  2. Step 2: Convert to fraction form
    102,097.13/153,151.16 = 31,981.91/x
  3. Step 3: Cross multiply
    102,097.13x = 153,151.16 × 31,981.91
  4. Step 4: Simplify right side
    102,097.13x = 4,898,065,689.85
  5. Step 5: Solve for x
    x = 4,898,065,689.85/102,097.13
  6. Step 6: Final answer
    x = 47,974.57

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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.