Home / 103,614.85-155,331.15-70,226.65

Finding the Fourth Proportional to 103,614.85, 155,331.15 and 70,226.65

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Solution

The fourth proportional to 103,614.85, 155,331.15 and 70,226.65 is: 105,278.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,614.85 : 155,331.15 = 70,226.65 : x
  2. Step 2: Convert to fraction form
    103,614.85/155,331.15 = 70,226.65/x
  3. Step 3: Cross multiply
    103,614.85x = 155,331.15 × 70,226.65
  4. Step 4: Simplify right side
    103,614.85x = 10,908,386,305.15
  5. Step 5: Solve for x
    x = 10,908,386,305.15/103,614.85
  6. Step 6: Final answer
    x = 105,278.21

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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.