Home / 112,902.28-155,848.98-84,690.04

Finding the Fourth Proportional to 112,902.28, 155,848.98 and 84,690.04

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Solution

The fourth proportional to 112,902.28, 155,848.98 and 84,690.04 is: 116,905.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,902.28 : 155,848.98 = 84,690.04 : x
  2. Step 2: Convert to fraction form
    112,902.28/155,848.98 = 84,690.04/x
  3. Step 3: Cross multiply
    112,902.28x = 155,848.98 × 84,690.04
  4. Step 4: Simplify right side
    112,902.28x = 13,198,856,350.16
  5. Step 5: Solve for x
    x = 13,198,856,350.16/112,902.28
  6. Step 6: Final answer
    x = 116,905.14

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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.