Home / 145,563.38-218,345.17-40,382.45

Finding the Fourth Proportional to 145,563.38, 218,345.17 and 40,382.45

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Solution

The fourth proportional to 145,563.38, 218,345.17 and 40,382.45 is: 60,573.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,563.38 : 218,345.17 = 40,382.45 : x
  2. Step 2: Convert to fraction form
    145,563.38/218,345.17 = 40,382.45/x
  3. Step 3: Cross multiply
    145,563.38x = 218,345.17 × 40,382.45
  4. Step 4: Simplify right side
    145,563.38x = 8,817,311,616.63
  5. Step 5: Solve for x
    x = 8,817,311,616.63/145,563.38
  6. Step 6: Final answer
    x = 60,573.70

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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.