Home / 153,885.76-230,826.24-78,962.68

Finding the Fourth Proportional to 153,885.76, 230,826.24 and 78,962.68

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Solution

The fourth proportional to 153,885.76, 230,826.24 and 78,962.68 is: 118,442.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,885.76 : 230,826.24 = 78,962.68 : x
  2. Step 2: Convert to fraction form
    153,885.76/230,826.24 = 78,962.68/x
  3. Step 3: Cross multiply
    153,885.76x = 230,826.24 × 78,962.68
  4. Step 4: Simplify right side
    153,885.76x = 18,226,658,524.72
  5. Step 5: Solve for x
    x = 18,226,658,524.72/153,885.76
  6. Step 6: Final answer
    x = 118,442.79

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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.