Home / 186,120.16-256,838.05-109,642.39

Finding the Fourth Proportional to 186,120.16, 256,838.05 and 109,642.39

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Solution

The fourth proportional to 186,120.16, 256,838.05 and 109,642.39 is: 151,301.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,120.16 : 256,838.05 = 109,642.39 : x
  2. Step 2: Convert to fraction form
    186,120.16/256,838.05 = 109,642.39/x
  3. Step 3: Cross multiply
    186,120.16x = 256,838.05 × 109,642.39
  4. Step 4: Simplify right side
    186,120.16x = 28,160,337,644.94
  5. Step 5: Solve for x
    x = 28,160,337,644.94/186,120.16
  6. Step 6: Final answer
    x = 151,301.92

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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.