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Finding the Fourth Proportional to 103,585.84, 142,959.44 and 63,323.17

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Solution

The fourth proportional to 103,585.84, 142,959.44 and 63,323.17 is: 87,392.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,585.84 : 142,959.44 = 63,323.17 : x
  2. Step 2: Convert to fraction form
    103,585.84/142,959.44 = 63,323.17/x
  3. Step 3: Cross multiply
    103,585.84x = 142,959.44 × 63,323.17
  4. Step 4: Simplify right side
    103,585.84x = 9,052,644,605.61
  5. Step 5: Solve for x
    x = 9,052,644,605.61/103,585.84
  6. Step 6: Final answer
    x = 87,392.68

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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.