Home / 153,933.85-212,426.50-85,951.88

Finding the Fourth Proportional to 153,933.85, 212,426.50 and 85,951.88

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Solution

The fourth proportional to 153,933.85, 212,426.50 and 85,951.88 is: 118,612.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,933.85 : 212,426.50 = 85,951.88 : x
  2. Step 2: Convert to fraction form
    153,933.85/212,426.50 = 85,951.88/x
  3. Step 3: Cross multiply
    153,933.85x = 212,426.50 × 85,951.88
  4. Step 4: Simplify right side
    153,933.85x = 18,258,457,912.47
  5. Step 5: Solve for x
    x = 18,258,457,912.47/153,933.85
  6. Step 6: Final answer
    x = 118,612.37

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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.