Home / 99,625.60-149,307.20-73,206.40

Finding the Fourth Proportional to 99,625.60, 149,307.20 and 73,206.40

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Solution

The fourth proportional to 99,625.60, 149,307.20 and 73,206.40 is: 109,713.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,625.60 : 149,307.20 = 73,206.40 : x
  2. Step 2: Convert to fraction form
    99,625.60/149,307.20 = 73,206.40/x
  3. Step 3: Cross multiply
    99,625.60x = 149,307.20 × 73,206.40
  4. Step 4: Simplify right side
    99,625.60x = 10,930,242,606.08
  5. Step 5: Solve for x
    x = 10,930,242,606.08/99,625.60
  6. Step 6: Final answer
    x = 109,713.19

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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.