Home / 121,263.40-181,895.10-83,209.60

Finding the Fourth Proportional to 121,263.40, 181,895.10 and 83,209.60

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Solution

The fourth proportional to 121,263.40, 181,895.10 and 83,209.60 is: 124,814.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,263.40 : 181,895.10 = 83,209.60 : x
  2. Step 2: Convert to fraction form
    121,263.40/181,895.10 = 83,209.60/x
  3. Step 3: Cross multiply
    121,263.40x = 181,895.10 × 83,209.60
  4. Step 4: Simplify right side
    121,263.40x = 15,135,418,512.96
  5. Step 5: Solve for x
    x = 15,135,418,512.96/121,263.40
  6. Step 6: Final answer
    x = 124,814.40

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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.