Home / 99,567.40-149,351.10-91,964.20

Finding the Fourth Proportional to 99,567.40, 149,351.10 and 91,964.20

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Solution

The fourth proportional to 99,567.40, 149,351.10 and 91,964.20 is: 137,946.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,567.40 : 149,351.10 = 91,964.20 : x
  2. Step 2: Convert to fraction form
    99,567.40/149,351.10 = 91,964.20/x
  3. Step 3: Cross multiply
    99,567.40x = 149,351.10 × 91,964.20
  4. Step 4: Simplify right side
    99,567.40x = 13,734,954,430.62
  5. Step 5: Solve for x
    x = 13,734,954,430.62/99,567.40
  6. Step 6: Final answer
    x = 137,946.30

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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.