Home / 185,787.17-256,386.35-105,214.71

Finding the Fourth Proportional to 185,787.17, 256,386.35 and 105,214.71

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Solution

The fourth proportional to 185,787.17, 256,386.35 and 105,214.71 is: 145,196.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,787.17 : 256,386.35 = 105,214.71 : x
  2. Step 2: Convert to fraction form
    185,787.17/256,386.35 = 105,214.71/x
  3. Step 3: Cross multiply
    185,787.17x = 256,386.35 × 105,214.71
  4. Step 4: Simplify right side
    185,787.17x = 26,975,615,726.25
  5. Step 5: Solve for x
    x = 26,975,615,726.25/185,787.17
  6. Step 6: Final answer
    x = 145,196.34

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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.