Home / 191,862.45-287,876.58-103,012.20

Finding the Fourth Proportional to 191,862.45, 287,876.58 and 103,012.20

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Solution

The fourth proportional to 191,862.45, 287,876.58 and 103,012.20 is: 154,562.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,862.45 : 287,876.58 = 103,012.20 : x
  2. Step 2: Convert to fraction form
    191,862.45/287,876.58 = 103,012.20/x
  3. Step 3: Cross multiply
    191,862.45x = 287,876.58 × 103,012.20
  4. Step 4: Simplify right side
    191,862.45x = 29,654,799,834.28
  5. Step 5: Solve for x
    x = 29,654,799,834.28/191,862.45
  6. Step 6: Final answer
    x = 154,562.81

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1.5x scale

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.