Home / 112,612.03-155,404.62-61,624.77

Finding the Fourth Proportional to 112,612.03, 155,404.62 and 61,624.77

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Solution

The fourth proportional to 112,612.03, 155,404.62 and 61,624.77 is: 85,042.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,612.03 : 155,404.62 = 61,624.77 : x
  2. Step 2: Convert to fraction form
    112,612.03/155,404.62 = 61,624.77/x
  3. Step 3: Cross multiply
    112,612.03x = 155,404.62 × 61,624.77
  4. Step 4: Simplify right side
    112,612.03x = 9,576,773,964.44
  5. Step 5: Solve for x
    x = 9,576,773,964.44/112,612.03
  6. Step 6: Final answer
    x = 85,042.19

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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.