Home / 112,429.28-155,150.50-61,440.88

Finding the Fourth Proportional to 112,429.28, 155,150.50 and 61,440.88

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Solution

The fourth proportional to 112,429.28, 155,150.50 and 61,440.88 is: 84,787.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,429.28 : 155,150.50 = 61,440.88 : x
  2. Step 2: Convert to fraction form
    112,429.28/155,150.50 = 61,440.88/x
  3. Step 3: Cross multiply
    112,429.28x = 155,150.50 × 61,440.88
  4. Step 4: Simplify right side
    112,429.28x = 9,532,583,252.44
  5. Step 5: Solve for x
    x = 9,532,583,252.44/112,429.28
  6. Step 6: Final answer
    x = 84,787.37

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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.