Home / 112,422.46-155,143.02-62,121.46

Finding the Fourth Proportional to 112,422.46, 155,143.02 and 62,121.46

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Solution

The fourth proportional to 112,422.46, 155,143.02 and 62,121.46 is: 85,727.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,422.46 : 155,143.02 = 62,121.46 : x
  2. Step 2: Convert to fraction form
    112,422.46/155,143.02 = 62,121.46/x
  3. Step 3: Cross multiply
    112,422.46x = 155,143.02 × 62,121.46
  4. Step 4: Simplify right side
    112,422.46x = 9,637,710,911.21
  5. Step 5: Solve for x
    x = 9,637,710,911.21/112,422.46
  6. Step 6: Final answer
    x = 85,727.63

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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.