Home / 102,509.08-141,462.28-57,796.76

Finding the Fourth Proportional to 102,509.08, 141,462.28 and 57,796.76

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Solution

The fourth proportional to 102,509.08, 141,462.28 and 57,796.76 is: 79,759.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,509.08 : 141,462.28 = 57,796.76 : x
  2. Step 2: Convert to fraction form
    102,509.08/141,462.28 = 57,796.76/x
  3. Step 3: Cross multiply
    102,509.08x = 141,462.28 × 57,796.76
  4. Step 4: Simplify right side
    102,509.08x = 8,176,061,446.21
  5. Step 5: Solve for x
    x = 8,176,061,446.21/102,509.08
  6. Step 6: Final answer
    x = 79,759.39

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1.5x scale

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.