Home / 148,838.40-223,257.60-86,630.40

Finding the Fourth Proportional to 148,838.40, 223,257.60 and 86,630.40

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Solution

The fourth proportional to 148,838.40, 223,257.60 and 86,630.40 is: 129,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,838.40 : 223,257.60 = 86,630.40 : x
  2. Step 2: Convert to fraction form
    148,838.40/223,257.60 = 86,630.40/x
  3. Step 3: Cross multiply
    148,838.40x = 223,257.60 × 86,630.40
  4. Step 4: Simplify right side
    148,838.40x = 19,340,895,191.04
  5. Step 5: Solve for x
    x = 19,340,895,191.04/148,838.40
  6. Step 6: Final answer
    x = 129,945.60

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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.