Home / 103,048.20-154,572.30-71,555.40

Finding the Fourth Proportional to 103,048.20, 154,572.30 and 71,555.40

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Solution

The fourth proportional to 103,048.20, 154,572.30 and 71,555.40 is: 107,333.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,048.20 : 154,572.30 = 71,555.40 : x
  2. Step 2: Convert to fraction form
    103,048.20/154,572.30 = 71,555.40/x
  3. Step 3: Cross multiply
    103,048.20x = 154,572.30 × 71,555.40
  4. Step 4: Simplify right side
    103,048.20x = 11,060,482,755.42
  5. Step 5: Solve for x
    x = 11,060,482,755.42/103,048.20
  6. Step 6: Final answer
    x = 107,333.10

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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.