Home / 99,778.60-149,667.90-96,279.40

Finding the Fourth Proportional to 99,778.60, 149,667.90 and 96,279.40

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Solution

The fourth proportional to 99,778.60, 149,667.90 and 96,279.40 is: 144,419.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,778.60 : 149,667.90 = 96,279.40 : x
  2. Step 2: Convert to fraction form
    99,778.60/149,667.90 = 96,279.40/x
  3. Step 3: Cross multiply
    99,778.60x = 149,667.90 × 96,279.40
  4. Step 4: Simplify right side
    99,778.60x = 14,409,935,611.26
  5. Step 5: Solve for x
    x = 14,409,935,611.26/99,778.60
  6. Step 6: Final answer
    x = 144,419.10

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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.