Home / 113,000.30-169,500.45-100,315.70

Finding the Fourth Proportional to 113,000.30, 169,500.45 and 100,315.70

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Solution

The fourth proportional to 113,000.30, 169,500.45 and 100,315.70 is: 150,473.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,000.30 : 169,500.45 = 100,315.70 : x
  2. Step 2: Convert to fraction form
    113,000.30/169,500.45 = 100,315.70/x
  3. Step 3: Cross multiply
    113,000.30x = 169,500.45 × 100,315.70
  4. Step 4: Simplify right side
    113,000.30x = 17,003,556,292.07
  5. Step 5: Solve for x
    x = 17,003,556,292.07/113,000.30
  6. Step 6: Final answer
    x = 150,473.55

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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.