Home / 191,943.20-287,914.80-98,631.20

Finding the Fourth Proportional to 191,943.20, 287,914.80 and 98,631.20

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Solution

The fourth proportional to 191,943.20, 287,914.80 and 98,631.20 is: 147,946.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,943.20 : 287,914.80 = 98,631.20 : x
  2. Step 2: Convert to fraction form
    191,943.20/287,914.80 = 98,631.20/x
  3. Step 3: Cross multiply
    191,943.20x = 287,914.80 × 98,631.20
  4. Step 4: Simplify right side
    191,943.20x = 28,397,382,221.76
  5. Step 5: Solve for x
    x = 28,397,382,221.76/191,943.20
  6. Step 6: Final answer
    x = 147,946.80

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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.