Home / 191,860.08-287,543.79-91,870.44

Finding the Fourth Proportional to 191,860.08, 287,543.79 and 91,870.44

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Solution

The fourth proportional to 191,860.08, 287,543.79 and 91,870.44 is: 137,687.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,860.08 : 287,543.79 = 91,870.44 : x
  2. Step 2: Convert to fraction form
    191,860.08/287,543.79 = 91,870.44/x
  3. Step 3: Cross multiply
    191,860.08x = 287,543.79 × 91,870.44
  4. Step 4: Simplify right side
    191,860.08x = 26,416,774,506.57
  5. Step 5: Solve for x
    x = 26,416,774,506.57/191,860.08
  6. Step 6: Final answer
    x = 137,687.71

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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.