Home / 105,322.10-157,983.15-100,948.10

Finding the Fourth Proportional to 105,322.10, 157,983.15 and 100,948.10

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Solution

The fourth proportional to 105,322.10, 157,983.15 and 100,948.10 is: 151,422.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,322.10 : 157,983.15 = 100,948.10 : x
  2. Step 2: Convert to fraction form
    105,322.10/157,983.15 = 100,948.10/x
  3. Step 3: Cross multiply
    105,322.10x = 157,983.15 × 100,948.10
  4. Step 4: Simplify right side
    105,322.10x = 15,948,098,824.52
  5. Step 5: Solve for x
    x = 15,948,098,824.52/105,322.10
  6. Step 6: Final answer
    x = 151,422.15

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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.