Home / 102,218.70-153,328.05-52,282.20

Finding the Fourth Proportional to 102,218.70, 153,328.05 and 52,282.20

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Solution

The fourth proportional to 102,218.70, 153,328.05 and 52,282.20 is: 78,423.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,218.70 : 153,328.05 = 52,282.20 : x
  2. Step 2: Convert to fraction form
    102,218.70/153,328.05 = 52,282.20/x
  3. Step 3: Cross multiply
    102,218.70x = 153,328.05 × 52,282.20
  4. Step 4: Simplify right side
    102,218.70x = 8,016,327,775.71
  5. Step 5: Solve for x
    x = 8,016,327,775.71/102,218.70
  6. Step 6: Final answer
    x = 78,423.30

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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.