Home / 191,079.96-286,645.86-66,404.76

Finding the Fourth Proportional to 191,079.96, 286,645.86 and 66,404.76

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Solution

The fourth proportional to 191,079.96, 286,645.86 and 66,404.76 is: 99,616.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,079.96 : 286,645.86 = 66,404.76 : x
  2. Step 2: Convert to fraction form
    191,079.96/286,645.86 = 66,404.76/x
  3. Step 3: Cross multiply
    191,079.96x = 286,645.86 × 66,404.76
  4. Step 4: Simplify right side
    191,079.96x = 19,034,649,538.29
  5. Step 5: Solve for x
    x = 19,034,649,538.29/191,079.96
  6. Step 6: Final answer
    x = 99,616.15

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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.