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Finding the Fourth Proportional to 102,000.30, 153,000.45 and 101,309.10

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Solution

The fourth proportional to 102,000.30, 153,000.45 and 101,309.10 is: 151,963.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,000.30 : 153,000.45 = 101,309.10 : x
  2. Step 2: Convert to fraction form
    102,000.30/153,000.45 = 101,309.10/x
  3. Step 3: Cross multiply
    102,000.30x = 153,000.45 × 101,309.10
  4. Step 4: Simplify right side
    102,000.30x = 15,500,337,889.10
  5. Step 5: Solve for x
    x = 15,500,337,889.10/102,000.30
  6. Step 6: Final answer
    x = 151,963.65

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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.