Home / 215,112.29-296,862.15-118,320.23

Finding the Fourth Proportional to 215,112.29, 296,862.15 and 118,320.23

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Solution

The fourth proportional to 215,112.29, 296,862.15 and 118,320.23 is: 163,285.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,112.29 : 296,862.15 = 118,320.23 : x
  2. Step 2: Convert to fraction form
    215,112.29/296,862.15 = 118,320.23/x
  3. Step 3: Cross multiply
    215,112.29x = 296,862.15 × 118,320.23
  4. Step 4: Simplify right side
    215,112.29x = 35,124,796,381.98
  5. Step 5: Solve for x
    x = 35,124,796,381.98/215,112.29
  6. Step 6: Final answer
    x = 163,285.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.