Home / 129,022.60-193,533.90-121,246.60

Finding the Fourth Proportional to 129,022.60, 193,533.90 and 121,246.60

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Solution

The fourth proportional to 129,022.60, 193,533.90 and 121,246.60 is: 181,869.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,022.60 : 193,533.90 = 121,246.60 : x
  2. Step 2: Convert to fraction form
    129,022.60/193,533.90 = 121,246.60/x
  3. Step 3: Cross multiply
    129,022.60x = 193,533.90 × 121,246.60
  4. Step 4: Simplify right side
    129,022.60x = 23,465,327,359.74
  5. Step 5: Solve for x
    x = 23,465,327,359.74/129,022.60
  6. Step 6: Final answer
    x = 181,869.90

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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.