Home / 185,976.69-256,642.47-105,411.66

Finding the Fourth Proportional to 185,976.69, 256,642.47 and 105,411.66

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Solution

The fourth proportional to 185,976.69, 256,642.47 and 105,411.66 is: 145,465.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,976.69 : 256,642.47 = 105,411.66 : x
  2. Step 2: Convert to fraction form
    185,976.69/256,642.47 = 105,411.66/x
  3. Step 3: Cross multiply
    185,976.69x = 256,642.47 × 105,411.66
  4. Step 4: Simplify right side
    185,976.69x = 27,053,108,789.20
  5. Step 5: Solve for x
    x = 27,053,108,789.20/185,976.69
  6. Step 6: Final answer
    x = 145,465.05

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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.