Home / 186,606.75-257,609.25-129,289.53

Finding the Fourth Proportional to 186,606.75, 257,609.25 and 129,289.53

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Solution

The fourth proportional to 186,606.75, 257,609.25 and 129,289.53 is: 178,483.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,606.75 : 257,609.25 = 129,289.53 : x
  2. Step 2: Convert to fraction form
    186,606.75/257,609.25 = 129,289.53/x
  3. Step 3: Cross multiply
    186,606.75x = 257,609.25 × 129,289.53
  4. Step 4: Simplify right side
    186,606.75x = 33,306,178,856.15
  5. Step 5: Solve for x
    x = 33,306,178,856.15/186,606.75
  6. Step 6: Final answer
    x = 178,483.25

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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.