Home / 153,033.30-229,355.08-86,510.43

Finding the Fourth Proportional to 153,033.30, 229,355.08 and 86,510.43

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Solution

The fourth proportional to 153,033.30, 229,355.08 and 86,510.43 is: 129,655.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,033.30 : 229,355.08 = 86,510.43 : x
  2. Step 2: Convert to fraction form
    153,033.30/229,355.08 = 86,510.43/x
  3. Step 3: Cross multiply
    153,033.30x = 229,355.08 × 86,510.43
  4. Step 4: Simplify right side
    153,033.30x = 19,841,606,377.21
  5. Step 5: Solve for x
    x = 19,841,606,377.21/153,033.30
  6. Step 6: Final answer
    x = 129,655.48

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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.