Home / 103,678.48-155,516.70-47,502.65

Finding the Fourth Proportional to 103,678.48, 155,516.70 and 47,502.65

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Solution

The fourth proportional to 103,678.48, 155,516.70 and 47,502.65 is: 71,253.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,678.48 : 155,516.70 = 47,502.65 : x
  2. Step 2: Convert to fraction form
    103,678.48/155,516.70 = 47,502.65/x
  3. Step 3: Cross multiply
    103,678.48x = 155,516.70 × 47,502.65
  4. Step 4: Simplify right side
    103,678.48x = 7,387,455,369.26
  5. Step 5: Solve for x
    x = 7,387,455,369.26/103,678.48
  6. Step 6: Final answer
    x = 71,253.51

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1.5x scale

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.