Home / 105,221.21-157,837.28-52,612.92

Finding the Fourth Proportional to 105,221.21, 157,837.28 and 52,612.92

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Solution

The fourth proportional to 105,221.21, 157,837.28 and 52,612.92 is: 78,922.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,221.21 : 157,837.28 = 52,612.92 : x
  2. Step 2: Convert to fraction form
    105,221.21/157,837.28 = 52,612.92/x
  3. Step 3: Cross multiply
    105,221.21x = 157,837.28 × 52,612.92
  4. Step 4: Simplify right side
    105,221.21x = 8,304,279,922.59
  5. Step 5: Solve for x
    x = 8,304,279,922.59/105,221.21
  6. Step 6: Final answer
    x = 78,922.11

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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.