Home / 453,155.49-679,689.09-137,615.13

Finding the Fourth Proportional to 453,155.49, 679,689.09 and 137,615.13

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Solution

The fourth proportional to 453,155.49, 679,689.09 and 137,615.13 is: 206,409.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,155.49 : 679,689.09 = 137,615.13 : x
  2. Step 2: Convert to fraction form
    453,155.49/679,689.09 = 137,615.13/x
  3. Step 3: Cross multiply
    453,155.49x = 679,689.09 × 137,615.13
  4. Step 4: Simplify right side
    453,155.49x = 93,535,502,479.93
  5. Step 5: Solve for x
    x = 93,535,502,479.93/453,155.49
  6. Step 6: Final answer
    x = 206,409.29

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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.