Home / 112,401.52-155,121.40-62,100.56

Finding the Fourth Proportional to 112,401.52, 155,121.40 and 62,100.56

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Solution

The fourth proportional to 112,401.52, 155,121.40 and 62,100.56 is: 85,702.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,401.52 : 155,121.40 = 62,100.56 : x
  2. Step 2: Convert to fraction form
    112,401.52/155,121.40 = 62,100.56/x
  3. Step 3: Cross multiply
    112,401.52x = 155,121.40 × 62,100.56
  4. Step 4: Simplify right side
    112,401.52x = 9,633,125,807.98
  5. Step 5: Solve for x
    x = 9,633,125,807.98/112,401.52
  6. Step 6: Final answer
    x = 85,702.81

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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.