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Finding the Fourth Proportional to 160,677.74, 240,677.55 and 128,915.84

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Solution

The fourth proportional to 160,677.74, 240,677.55 and 128,915.84 is: 193,101.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,677.74 : 240,677.55 = 128,915.84 : x
  2. Step 2: Convert to fraction form
    160,677.74/240,677.55 = 128,915.84/x
  3. Step 3: Cross multiply
    160,677.74x = 240,677.55 × 128,915.84
  4. Step 4: Simplify right side
    160,677.74x = 31,027,149,129.09
  5. Step 5: Solve for x
    x = 31,027,149,129.09/160,677.74
  6. Step 6: Final answer
    x = 193,101.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.