Home / 191,559.24-287,338.32-86,254.92

Finding the Fourth Proportional to 191,559.24, 287,338.32 and 86,254.92

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Solution

The fourth proportional to 191,559.24, 287,338.32 and 86,254.92 is: 129,382.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,559.24 : 287,338.32 = 86,254.92 : x
  2. Step 2: Convert to fraction form
    191,559.24/287,338.32 = 86,254.92/x
  3. Step 3: Cross multiply
    191,559.24x = 287,338.32 × 86,254.92
  4. Step 4: Simplify right side
    191,559.24x = 24,784,343,804.53
  5. Step 5: Solve for x
    x = 24,784,343,804.53/191,559.24
  6. Step 6: Final answer
    x = 129,382.14

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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.