Home / 153,728.10-212,243.46-96,445.92

Finding the Fourth Proportional to 153,728.10, 212,243.46 and 96,445.92

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Solution

The fourth proportional to 153,728.10, 212,243.46 and 96,445.92 is: 133,157.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,728.10 : 212,243.46 = 96,445.92 : x
  2. Step 2: Convert to fraction form
    153,728.10/212,243.46 = 96,445.92/x
  3. Step 3: Cross multiply
    153,728.10x = 212,243.46 × 96,445.92
  4. Step 4: Simplify right side
    153,728.10x = 20,470,015,763.68
  5. Step 5: Solve for x
    x = 20,470,015,763.68/153,728.10
  6. Step 6: Final answer
    x = 133,157.28

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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.