Home / 186,600.90-257,363.59-129,261.86

Finding the Fourth Proportional to 186,600.90, 257,363.59 and 129,261.86

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Solution

The fourth proportional to 186,600.90, 257,363.59 and 129,261.86 is: 178,280.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,600.90 : 257,363.59 = 129,261.86 : x
  2. Step 2: Convert to fraction form
    186,600.90/257,363.59 = 129,261.86/x
  3. Step 3: Cross multiply
    186,600.90x = 257,363.59 × 129,261.86
  4. Step 4: Simplify right side
    186,600.90x = 33,267,296,339.68
  5. Step 5: Solve for x
    x = 33,267,296,339.68/186,600.90
  6. Step 6: Final answer
    x = 178,280.47

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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.