Home / 122,373.28-168,884.88-71,401.60

Finding the Fourth Proportional to 122,373.28, 168,884.88 and 71,401.60

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Solution

The fourth proportional to 122,373.28, 168,884.88 and 71,401.60 is: 98,539.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,373.28 : 168,884.88 = 71,401.60 : x
  2. Step 2: Convert to fraction form
    122,373.28/168,884.88 = 71,401.60/x
  3. Step 3: Cross multiply
    122,373.28x = 168,884.88 × 71,401.60
  4. Step 4: Simplify right side
    122,373.28x = 12,058,650,647.81
  5. Step 5: Solve for x
    x = 12,058,650,647.81/122,373.28
  6. Step 6: Final answer
    x = 98,539.90

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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.