Home / 153,905.20-230,922.60-83,834.80

Finding the Fourth Proportional to 153,905.20, 230,922.60 and 83,834.80

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Solution

The fourth proportional to 153,905.20, 230,922.60 and 83,834.80 is: 125,787.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,905.20 : 230,922.60 = 83,834.80 : x
  2. Step 2: Convert to fraction form
    153,905.20/230,922.60 = 83,834.80/x
  3. Step 3: Cross multiply
    153,905.20x = 230,922.60 × 83,834.80
  4. Step 4: Simplify right side
    153,905.20x = 19,359,349,986.48
  5. Step 5: Solve for x
    x = 19,359,349,986.48/153,905.20
  6. Step 6: Final answer
    x = 125,787.50

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1.5x scale

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.