Home / 135,854.08-187,436.52-79,225.36

Finding the Fourth Proportional to 135,854.08, 187,436.52 and 79,225.36

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Solution

The fourth proportional to 135,854.08, 187,436.52 and 79,225.36 is: 109,306.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,854.08 : 187,436.52 = 79,225.36 : x
  2. Step 2: Convert to fraction form
    135,854.08/187,436.52 = 79,225.36/x
  3. Step 3: Cross multiply
    135,854.08x = 187,436.52 × 79,225.36
  4. Step 4: Simplify right side
    135,854.08x = 14,849,725,774.15
  5. Step 5: Solve for x
    x = 14,849,725,774.15/135,854.08
  6. Step 6: Final answer
    x = 109,306.44

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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.