Home / 89,613.80-134,125.41-79,772.30

Finding the Fourth Proportional to 89,613.80, 134,125.41 and 79,772.30

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Solution

The fourth proportional to 89,613.80, 134,125.41 and 79,772.30 is: 119,395.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,613.80 : 134,125.41 = 79,772.30 : x
  2. Step 2: Convert to fraction form
    89,613.80/134,125.41 = 79,772.30/x
  3. Step 3: Cross multiply
    89,613.80x = 134,125.41 × 79,772.30
  4. Step 4: Simplify right side
    89,613.80x = 10,699,492,444.14
  5. Step 5: Solve for x
    x = 10,699,492,444.14/89,613.80
  6. Step 6: Final answer
    x = 119,395.59

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1.5x scale

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.