Home / 112,404.78-155,113.92-61,416.36

Finding the Fourth Proportional to 112,404.78, 155,113.92 and 61,416.36

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Solution

The fourth proportional to 112,404.78, 155,113.92 and 61,416.36 is: 84,752.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,404.78 : 155,113.92 = 61,416.36 : x
  2. Step 2: Convert to fraction form
    112,404.78/155,113.92 = 61,416.36/x
  3. Step 3: Cross multiply
    112,404.78x = 155,113.92 × 61,416.36
  4. Step 4: Simplify right side
    112,404.78x = 9,526,532,351.73
  5. Step 5: Solve for x
    x = 9,526,532,351.73/112,404.78
  6. Step 6: Final answer
    x = 84,752.02

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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.