Home / 102,985.52-142,118.92-57,663.92

Finding the Fourth Proportional to 102,985.52, 142,118.92 and 57,663.92

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Solution

The fourth proportional to 102,985.52, 142,118.92 and 57,663.92 is: 79,575.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,985.52 : 142,118.92 = 57,663.92 : x
  2. Step 2: Convert to fraction form
    102,985.52/142,118.92 = 57,663.92/x
  3. Step 3: Cross multiply
    102,985.52x = 142,118.92 × 57,663.92
  4. Step 4: Simplify right side
    102,985.52x = 8,195,134,033.37
  5. Step 5: Solve for x
    x = 8,195,134,033.37/102,985.52
  6. Step 6: Final answer
    x = 79,575.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.