Home / 124,918.30-187,312.65-45,991.90

Finding the Fourth Proportional to 124,918.30, 187,312.65 and 45,991.90

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Solution

The fourth proportional to 124,918.30, 187,312.65 and 45,991.90 is: 68,963.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,918.30 : 187,312.65 = 45,991.90 : x
  2. Step 2: Convert to fraction form
    124,918.30/187,312.65 = 45,991.90/x
  3. Step 3: Cross multiply
    124,918.30x = 187,312.65 × 45,991.90
  4. Step 4: Simplify right side
    124,918.30x = 8,614,864,667.54
  5. Step 5: Solve for x
    x = 8,614,864,667.54/124,918.30
  6. Step 6: Final answer
    x = 68,963.99

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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.