Home / 145,382.40-218,048.22-38,767.68

Finding the Fourth Proportional to 145,382.40, 218,048.22 and 38,767.68

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Solution

The fourth proportional to 145,382.40, 218,048.22 and 38,767.68 is: 58,144.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,382.40 : 218,048.22 = 38,767.68 : x
  2. Step 2: Convert to fraction form
    145,382.40/218,048.22 = 38,767.68/x
  3. Step 3: Cross multiply
    145,382.40x = 218,048.22 × 38,767.68
  4. Step 4: Simplify right side
    145,382.40x = 8,453,223,617.53
  5. Step 5: Solve for x
    x = 8,453,223,617.53/145,382.40
  6. Step 6: Final answer
    x = 58,144.75

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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.