Home / 157,233.46-216,979.37-85,612.18

Finding the Fourth Proportional to 157,233.46, 216,979.37 and 85,612.18

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Solution

The fourth proportional to 157,233.46, 216,979.37 and 85,612.18 is: 118,143.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,233.46 : 216,979.37 = 85,612.18 : x
  2. Step 2: Convert to fraction form
    157,233.46/216,979.37 = 85,612.18/x
  3. Step 3: Cross multiply
    157,233.46x = 216,979.37 × 85,612.18
  4. Step 4: Simplify right side
    157,233.46x = 18,576,076,452.67
  5. Step 5: Solve for x
    x = 18,576,076,452.67/157,233.46
  6. Step 6: Final answer
    x = 118,143.28

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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.