Home / 102,655.13-153,983.07-31,577.29

Finding the Fourth Proportional to 102,655.13, 153,983.07 and 31,577.29

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Solution

The fourth proportional to 102,655.13, 153,983.07 and 31,577.29 is: 47,366.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,655.13 : 153,983.07 = 31,577.29 : x
  2. Step 2: Convert to fraction form
    102,655.13/153,983.07 = 31,577.29/x
  3. Step 3: Cross multiply
    102,655.13x = 153,983.07 × 31,577.29
  4. Step 4: Simplify right side
    102,655.13x = 4,862,367,671.52
  5. Step 5: Solve for x
    x = 4,862,367,671.52/102,655.13
  6. Step 6: Final answer
    x = 47,366.05

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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.