Home / 102,777.76-154,167.20-31,699.52

Finding the Fourth Proportional to 102,777.76, 154,167.20 and 31,699.52

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Solution

The fourth proportional to 102,777.76, 154,167.20 and 31,699.52 is: 47,549.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,777.76 : 154,167.20 = 31,699.52 : x
  2. Step 2: Convert to fraction form
    102,777.76/154,167.20 = 31,699.52/x
  3. Step 3: Cross multiply
    102,777.76x = 154,167.20 × 31,699.52
  4. Step 4: Simplify right side
    102,777.76x = 4,887,026,239.74
  5. Step 5: Solve for x
    x = 4,887,026,239.74/102,777.76
  6. Step 6: Final answer
    x = 47,549.45

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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.