Home / 102,867.72-141,956.70-57,545.52

Finding the Fourth Proportional to 102,867.72, 141,956.70 and 57,545.52

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Solution

The fourth proportional to 102,867.72, 141,956.70 and 57,545.52 is: 79,412.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,867.72 : 141,956.70 = 57,545.52 : x
  2. Step 2: Convert to fraction form
    102,867.72/141,956.70 = 57,545.52/x
  3. Step 3: Cross multiply
    102,867.72x = 141,956.70 × 57,545.52
  4. Step 4: Simplify right side
    102,867.72x = 8,168,972,118.98
  5. Step 5: Solve for x
    x = 8,168,972,118.98/102,867.72
  6. Step 6: Final answer
    x = 79,412.40

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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.