Home / 121,005.20-181,507.80-97,677.20

Finding the Fourth Proportional to 121,005.20, 181,507.80 and 97,677.20

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Solution

The fourth proportional to 121,005.20, 181,507.80 and 97,677.20 is: 146,515.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,005.20 : 181,507.80 = 97,677.20 : x
  2. Step 2: Convert to fraction form
    121,005.20/181,507.80 = 97,677.20/x
  3. Step 3: Cross multiply
    121,005.20x = 181,507.80 × 97,677.20
  4. Step 4: Simplify right side
    121,005.20x = 17,729,173,682.16
  5. Step 5: Solve for x
    x = 17,729,173,682.16/121,005.20
  6. Step 6: Final answer
    x = 146,515.80

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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.