Home / 112,440.48-155,158.56-62,139.36

Finding the Fourth Proportional to 112,440.48, 155,158.56 and 62,139.36

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Solution

The fourth proportional to 112,440.48, 155,158.56 and 62,139.36 is: 85,747.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,440.48 : 155,158.56 = 62,139.36 : x
  2. Step 2: Convert to fraction form
    112,440.48/155,158.56 = 62,139.36/x
  3. Step 3: Cross multiply
    112,440.48x = 155,158.56 × 62,139.36
  4. Step 4: Simplify right side
    112,440.48x = 9,641,453,616.92
  5. Step 5: Solve for x
    x = 9,641,453,616.92/112,440.48
  6. Step 6: Final answer
    x = 85,747.18

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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.