Home / 172,278.99-258,407.55-53,947.71

Finding the Fourth Proportional to 172,278.99, 258,407.55 and 53,947.71

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Solution

The fourth proportional to 172,278.99, 258,407.55 and 53,947.71 is: 80,918.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,278.99 : 258,407.55 = 53,947.71 : x
  2. Step 2: Convert to fraction form
    172,278.99/258,407.55 = 53,947.71/x
  3. Step 3: Cross multiply
    172,278.99x = 258,407.55 × 53,947.71
  4. Step 4: Simplify right side
    172,278.99x = 13,940,495,569.21
  5. Step 5: Solve for x
    x = 13,940,495,569.21/172,278.99
  6. Step 6: Final answer
    x = 80,918.14

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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.