Home / 99,389.20-149,256.60-52,733.20

Finding the Fourth Proportional to 99,389.20, 149,256.60 and 52,733.20

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Solution

The fourth proportional to 99,389.20, 149,256.60 and 52,733.20 is: 79,191.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,389.20 : 149,256.60 = 52,733.20 : x
  2. Step 2: Convert to fraction form
    99,389.20/149,256.60 = 52,733.20/x
  3. Step 3: Cross multiply
    99,389.20x = 149,256.60 × 52,733.20
  4. Step 4: Simplify right side
    99,389.20x = 7,870,778,139.12
  5. Step 5: Solve for x
    x = 7,870,778,139.12/99,389.20
  6. Step 6: Final answer
    x = 79,191.48

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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.