Home / 147,254.43-203,205.78-89,989.55

Finding the Fourth Proportional to 147,254.43, 203,205.78 and 89,989.55

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Solution

The fourth proportional to 147,254.43, 203,205.78 and 89,989.55 is: 124,182.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,254.43 : 203,205.78 = 89,989.55 : x
  2. Step 2: Convert to fraction form
    147,254.43/203,205.78 = 89,989.55/x
  3. Step 3: Cross multiply
    147,254.43x = 203,205.78 × 89,989.55
  4. Step 4: Simplify right side
    147,254.43x = 18,286,397,124.16
  5. Step 5: Solve for x
    x = 18,286,397,124.16/147,254.43
  6. Step 6: Final answer
    x = 124,182.32

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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.