Home / 121,267.40-181,901.10-83,213.60

Finding the Fourth Proportional to 121,267.40, 181,901.10 and 83,213.60

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Solution

The fourth proportional to 121,267.40, 181,901.10 and 83,213.60 is: 124,820.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,267.40 : 181,901.10 = 83,213.60 : x
  2. Step 2: Convert to fraction form
    121,267.40/181,901.10 = 83,213.60/x
  3. Step 3: Cross multiply
    121,267.40x = 181,901.10 × 83,213.60
  4. Step 4: Simplify right side
    121,267.40x = 15,136,645,374.96
  5. Step 5: Solve for x
    x = 15,136,645,374.96/121,267.40
  6. Step 6: Final answer
    x = 124,820.40

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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.