Home / 89,899.40-134,849.10-79,531.40

Finding the Fourth Proportional to 89,899.40, 134,849.10 and 79,531.40

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Solution

The fourth proportional to 89,899.40, 134,849.10 and 79,531.40 is: 119,297.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,899.40 : 134,849.10 = 79,531.40 : x
  2. Step 2: Convert to fraction form
    89,899.40/134,849.10 = 79,531.40/x
  3. Step 3: Cross multiply
    89,899.40x = 134,849.10 × 79,531.40
  4. Step 4: Simplify right side
    89,899.40x = 10,724,737,711.74
  5. Step 5: Solve for x
    x = 10,724,737,711.74/89,899.40
  6. Step 6: Final answer
    x = 119,297.10

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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.