Home / 145,295.27-217,881.39-45,428.65

Finding the Fourth Proportional to 145,295.27, 217,881.39 and 45,428.65

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Solution

The fourth proportional to 145,295.27, 217,881.39 and 45,428.65 is: 68,123.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,295.27 : 217,881.39 = 45,428.65 : x
  2. Step 2: Convert to fraction form
    145,295.27/217,881.39 = 45,428.65/x
  3. Step 3: Cross multiply
    145,295.27x = 217,881.39 × 45,428.65
  4. Step 4: Simplify right side
    145,295.27x = 9,898,057,033.48
  5. Step 5: Solve for x
    x = 9,898,057,033.48/145,295.27
  6. Step 6: Final answer
    x = 68,123.74

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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.