Home / 129,360.60-178,421.40-114,226.56

Finding the Fourth Proportional to 129,360.60, 178,421.40 and 114,226.56

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Solution

The fourth proportional to 129,360.60, 178,421.40 and 114,226.56 is: 157,547.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,360.60 : 178,421.40 = 114,226.56 : x
  2. Step 2: Convert to fraction form
    129,360.60/178,421.40 = 114,226.56/x
  3. Step 3: Cross multiply
    129,360.60x = 178,421.40 × 114,226.56
  4. Step 4: Simplify right side
    129,360.60x = 20,380,462,752.38
  5. Step 5: Solve for x
    x = 20,380,462,752.38/129,360.60
  6. Step 6: Final answer
    x = 157,547.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.