Home / 102,272.56-153,302.20-57,227.88

Finding the Fourth Proportional to 102,272.56, 153,302.20 and 57,227.88

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Solution

The fourth proportional to 102,272.56, 153,302.20 and 57,227.88 is: 85,782.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,272.56 : 153,302.20 = 57,227.88 : x
  2. Step 2: Convert to fraction form
    102,272.56/153,302.20 = 57,227.88/x
  3. Step 3: Cross multiply
    102,272.56x = 153,302.20 × 57,227.88
  4. Step 4: Simplify right side
    102,272.56x = 8,773,159,762.27
  5. Step 5: Solve for x
    x = 8,773,159,762.27/102,272.56
  6. Step 6: Final answer
    x = 85,782.15

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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.