Home / 191,167.17-286,785.39-78,784.83

Finding the Fourth Proportional to 191,167.17, 286,785.39 and 78,784.83

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Solution

The fourth proportional to 191,167.17, 286,785.39 and 78,784.83 is: 118,191.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,167.17 : 286,785.39 = 78,784.83 : x
  2. Step 2: Convert to fraction form
    191,167.17/286,785.39 = 78,784.83/x
  3. Step 3: Cross multiply
    191,167.17x = 286,785.39 × 78,784.83
  4. Step 4: Simplify right side
    191,167.17x = 22,594,338,197.63
  5. Step 5: Solve for x
    x = 22,594,338,197.63/191,167.17
  6. Step 6: Final answer
    x = 118,191.52

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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.