Home / 156,470.40-234,608.40-89,877.60

Finding the Fourth Proportional to 156,470.40, 234,608.40 and 89,877.60

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Solution

The fourth proportional to 156,470.40, 234,608.40 and 89,877.60 is: 134,760.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,470.40 : 234,608.40 = 89,877.60 : x
  2. Step 2: Convert to fraction form
    156,470.40/234,608.40 = 89,877.60/x
  3. Step 3: Cross multiply
    156,470.40x = 234,608.40 × 89,877.60
  4. Step 4: Simplify right side
    156,470.40x = 21,086,039,931.84
  5. Step 5: Solve for x
    x = 21,086,039,931.84/156,470.40
  6. Step 6: Final answer
    x = 134,760.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.