Home / 191,948.55-287,922.80-103,079.81

Finding the Fourth Proportional to 191,948.55, 287,922.80 and 103,079.81

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Solution

The fourth proportional to 191,948.55, 287,922.80 and 103,079.81 is: 154,619.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,948.55 : 287,922.80 = 103,079.81 : x
  2. Step 2: Convert to fraction form
    191,948.55/287,922.80 = 103,079.81/x
  3. Step 3: Cross multiply
    191,948.55x = 287,922.80 × 103,079.81
  4. Step 4: Simplify right side
    191,948.55x = 29,679,025,563.66
  5. Step 5: Solve for x
    x = 29,679,025,563.66/191,948.55
  6. Step 6: Final answer
    x = 154,619.69

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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.