Home / 99,918.48-149,886.36-40,758.24

Finding the Fourth Proportional to 99,918.48, 149,886.36 and 40,758.24

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Solution

The fourth proportional to 99,918.48, 149,886.36 and 40,758.24 is: 61,140.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,918.48 : 149,886.36 = 40,758.24 : x
  2. Step 2: Convert to fraction form
    99,918.48/149,886.36 = 40,758.24/x
  3. Step 3: Cross multiply
    99,918.48x = 149,886.36 × 40,758.24
  4. Step 4: Simplify right side
    99,918.48x = 6,109,104,233.61
  5. Step 5: Solve for x
    x = 6,109,104,233.61/99,918.48
  6. Step 6: Final answer
    x = 61,140.88

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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.