Home / 112,424.60-155,147.99-61,439.49

Finding the Fourth Proportional to 112,424.60, 155,147.99 and 61,439.49

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Solution

The fourth proportional to 112,424.60, 155,147.99 and 61,439.49 is: 84,787.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,424.60 : 155,147.99 = 61,439.49 : x
  2. Step 2: Convert to fraction form
    112,424.60/155,147.99 = 61,439.49/x
  3. Step 3: Cross multiply
    112,424.60x = 155,147.99 × 61,439.49
  4. Step 4: Simplify right side
    112,424.60x = 9,532,212,685.06
  5. Step 5: Solve for x
    x = 9,532,212,685.06/112,424.60
  6. Step 6: Final answer
    x = 84,787.61

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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.