Home / 103,752.39-143,182.15-57,816.18

Finding the Fourth Proportional to 103,752.39, 143,182.15 and 57,816.18

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Solution

The fourth proportional to 103,752.39, 143,182.15 and 57,816.18 is: 79,788.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,752.39 : 143,182.15 = 57,816.18 : x
  2. Step 2: Convert to fraction form
    103,752.39/143,182.15 = 57,816.18/x
  3. Step 3: Cross multiply
    103,752.39x = 143,182.15 × 57,816.18
  4. Step 4: Simplify right side
    103,752.39x = 8,278,244,812.65
  5. Step 5: Solve for x
    x = 8,278,244,812.65/103,752.39
  6. Step 6: Final answer
    x = 79,788.47

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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.