Home / 103,678.49-155,516.70-47,502.66

Finding the Fourth Proportional to 103,678.49, 155,516.70 and 47,502.66

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Solution

The fourth proportional to 103,678.49, 155,516.70 and 47,502.66 is: 71,253.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,678.49 : 155,516.70 = 47,502.66 : x
  2. Step 2: Convert to fraction form
    103,678.49/155,516.70 = 47,502.66/x
  3. Step 3: Cross multiply
    103,678.49x = 155,516.70 × 47,502.66
  4. Step 4: Simplify right side
    103,678.49x = 7,387,456,924.42
  5. Step 5: Solve for x
    x = 7,387,456,924.42/103,678.49
  6. Step 6: Final answer
    x = 71,253.52

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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.