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Finding the Fourth Proportional to 160,580.20, 240,870.30 and 85,930.60

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Solution

The fourth proportional to 160,580.20, 240,870.30 and 85,930.60 is: 128,895.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,580.20 : 240,870.30 = 85,930.60 : x
  2. Step 2: Convert to fraction form
    160,580.20/240,870.30 = 85,930.60/x
  3. Step 3: Cross multiply
    160,580.20x = 240,870.30 × 85,930.60
  4. Step 4: Simplify right side
    160,580.20x = 20,698,129,401.18
  5. Step 5: Solve for x
    x = 20,698,129,401.18/160,580.20
  6. Step 6: Final answer
    x = 128,895.90

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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.