Home / 99,072.42-136,751.22-66,853.86

Finding the Fourth Proportional to 99,072.42, 136,751.22 and 66,853.86

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Solution

The fourth proportional to 99,072.42, 136,751.22 and 66,853.86 is: 92,279.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,072.42 : 136,751.22 = 66,853.86 : x
  2. Step 2: Convert to fraction form
    99,072.42/136,751.22 = 66,853.86/x
  3. Step 3: Cross multiply
    99,072.42x = 136,751.22 × 66,853.86
  4. Step 4: Simplify right side
    99,072.42x = 9,142,346,916.71
  5. Step 5: Solve for x
    x = 9,142,346,916.71/99,072.42
  6. Step 6: Final answer
    x = 92,279.43

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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.