Home / 135,825.43-187,430.20-75,393.13

Finding the Fourth Proportional to 135,825.43, 187,430.20 and 75,393.13

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Solution

The fourth proportional to 135,825.43, 187,430.20 and 75,393.13 is: 104,037.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,825.43 : 187,430.20 = 75,393.13 : x
  2. Step 2: Convert to fraction form
    135,825.43/187,430.20 = 75,393.13/x
  3. Step 3: Cross multiply
    135,825.43x = 187,430.20 × 75,393.13
  4. Step 4: Simplify right side
    135,825.43x = 14,130,949,434.53
  5. Step 5: Solve for x
    x = 14,130,949,434.53/135,825.43
  6. Step 6: Final answer
    x = 104,037.58

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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.