Home / 191,052.90-286,531.83-78,702.66

Finding the Fourth Proportional to 191,052.90, 286,531.83 and 78,702.66

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Solution

The fourth proportional to 191,052.90, 286,531.83 and 78,702.66 is: 118,034.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,052.90 : 286,531.83 = 78,702.66 : x
  2. Step 2: Convert to fraction form
    191,052.90/286,531.83 = 78,702.66/x
  3. Step 3: Cross multiply
    191,052.90x = 286,531.83 × 78,702.66
  4. Step 4: Simplify right side
    191,052.90x = 22,550,817,195.67
  5. Step 5: Solve for x
    x = 22,550,817,195.67/191,052.90
  6. Step 6: Final answer
    x = 118,034.41

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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.