Home / 153,000.10-229,342.20-68,800.60

Finding the Fourth Proportional to 153,000.10, 229,342.20 and 68,800.60

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Solution

The fourth proportional to 153,000.10, 229,342.20 and 68,800.60 is: 103,129.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,000.10 : 229,342.20 = 68,800.60 : x
  2. Step 2: Convert to fraction form
    153,000.10/229,342.20 = 68,800.60/x
  3. Step 3: Cross multiply
    153,000.10x = 229,342.20 × 68,800.60
  4. Step 4: Simplify right side
    153,000.10x = 15,778,880,965.32
  5. Step 5: Solve for x
    x = 15,778,880,965.32/153,000.10
  6. Step 6: Final answer
    x = 103,129.87

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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.