Home / 135,950.30-187,641.40-75,541.70

Finding the Fourth Proportional to 135,950.30, 187,641.40 and 75,541.70

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Solution

The fourth proportional to 135,950.30, 187,641.40 and 75,541.70 is: 104,264.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,950.30 : 187,641.40 = 75,541.70 : x
  2. Step 2: Convert to fraction form
    135,950.30/187,641.40 = 75,541.70/x
  3. Step 3: Cross multiply
    135,950.30x = 187,641.40 × 75,541.70
  4. Step 4: Simplify right side
    135,950.30x = 14,174,750,346.38
  5. Step 5: Solve for x
    x = 14,174,750,346.38/135,950.30
  6. Step 6: Final answer
    x = 104,264.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.