Home / 135,148.15-186,496.42-74,715.18

Finding the Fourth Proportional to 135,148.15, 186,496.42 and 74,715.18

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Solution

The fourth proportional to 135,148.15, 186,496.42 and 74,715.18 is: 103,102.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,148.15 : 186,496.42 = 74,715.18 : x
  2. Step 2: Convert to fraction form
    135,148.15/186,496.42 = 74,715.18/x
  3. Step 3: Cross multiply
    135,148.15x = 186,496.42 × 74,715.18
  4. Step 4: Simplify right side
    135,148.15x = 13,934,113,589.66
  5. Step 5: Solve for x
    x = 13,934,113,589.66/135,148.15
  6. Step 6: Final answer
    x = 103,102.51

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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.