Home / 157,229.46-216,973.85-85,608.18

Finding the Fourth Proportional to 157,229.46, 216,973.85 and 85,608.18

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Solution

The fourth proportional to 157,229.46, 216,973.85 and 85,608.18 is: 118,137.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,229.46 : 216,973.85 = 85,608.18 : x
  2. Step 2: Convert to fraction form
    157,229.46/216,973.85 = 85,608.18/x
  3. Step 3: Cross multiply
    157,229.46x = 216,973.85 × 85,608.18
  4. Step 4: Simplify right side
    157,229.46x = 18,574,735,978.05
  5. Step 5: Solve for x
    x = 18,574,735,978.05/157,229.46
  6. Step 6: Final answer
    x = 118,137.76

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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.