Home / 191,528.02-287,415.96-86,340.61

Finding the Fourth Proportional to 191,528.02, 287,415.96 and 86,340.61

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Solution

The fourth proportional to 191,528.02, 287,415.96 and 86,340.61 is: 129,566.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,528.02 : 287,415.96 = 86,340.61 : x
  2. Step 2: Convert to fraction form
    191,528.02/287,415.96 = 86,340.61/x
  3. Step 3: Cross multiply
    191,528.02x = 287,415.96 × 86,340.61
  4. Step 4: Simplify right side
    191,528.02x = 24,815,669,310.14
  5. Step 5: Solve for x
    x = 24,815,669,310.14/191,528.02
  6. Step 6: Final answer
    x = 129,566.78

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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.