Home / 91,248.10-136,974.55-70,563.30

Finding the Fourth Proportional to 91,248.10, 136,974.55 and 70,563.30

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Solution

The fourth proportional to 91,248.10, 136,974.55 and 70,563.30 is: 105,924.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,248.10 : 136,974.55 = 70,563.30 : x
  2. Step 2: Convert to fraction form
    91,248.10/136,974.55 = 70,563.30/x
  3. Step 3: Cross multiply
    91,248.10x = 136,974.55 × 70,563.30
  4. Step 4: Simplify right side
    91,248.10x = 9,665,376,264.02
  5. Step 5: Solve for x
    x = 9,665,376,264.02/91,248.10
  6. Step 6: Final answer
    x = 105,924.14

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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.