Home / 125,158.10-187,735.43-30,389.02

Finding the Fourth Proportional to 125,158.10, 187,735.43 and 30,389.02

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Solution

The fourth proportional to 125,158.10, 187,735.43 and 30,389.02 is: 45,583.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,158.10 : 187,735.43 = 30,389.02 : x
  2. Step 2: Convert to fraction form
    125,158.10/187,735.43 = 30,389.02/x
  3. Step 3: Cross multiply
    125,158.10x = 187,735.43 × 30,389.02
  4. Step 4: Simplify right side
    125,158.10x = 5,705,095,343.61
  5. Step 5: Solve for x
    x = 5,705,095,343.61/125,158.10
  6. Step 6: Final answer
    x = 45,583.11

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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.