Home / 155,809.46-215,061.10-92,169.38

Finding the Fourth Proportional to 155,809.46, 215,061.10 and 92,169.38

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Solution

The fourth proportional to 155,809.46, 215,061.10 and 92,169.38 is: 127,219.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,809.46 : 215,061.10 = 92,169.38 : x
  2. Step 2: Convert to fraction form
    155,809.46/215,061.10 = 92,169.38/x
  3. Step 3: Cross multiply
    155,809.46x = 215,061.10 × 92,169.38
  4. Step 4: Simplify right side
    155,809.46x = 19,822,048,249.12
  5. Step 5: Solve for x
    x = 19,822,048,249.12/155,809.46
  6. Step 6: Final answer
    x = 127,219.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.