Home / 102,088.10-153,132.15-31,972.88

Finding the Fourth Proportional to 102,088.10, 153,132.15 and 31,972.88

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Solution

The fourth proportional to 102,088.10, 153,132.15 and 31,972.88 is: 47,959.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,088.10 : 153,132.15 = 31,972.88 : x
  2. Step 2: Convert to fraction form
    102,088.10/153,132.15 = 31,972.88/x
  3. Step 3: Cross multiply
    102,088.10x = 153,132.15 × 31,972.88
  4. Step 4: Simplify right side
    102,088.10x = 4,896,075,090.43
  5. Step 5: Solve for x
    x = 4,896,075,090.43/102,088.10
  6. Step 6: Final answer
    x = 47,959.31

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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.