Home / 186,071.09-256,778.37-101,188.13

Finding the Fourth Proportional to 186,071.09, 256,778.37 and 101,188.13

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Solution

The fourth proportional to 186,071.09, 256,778.37 and 101,188.13 is: 139,639.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,071.09 : 256,778.37 = 101,188.13 : x
  2. Step 2: Convert to fraction form
    186,071.09/256,778.37 = 101,188.13/x
  3. Step 3: Cross multiply
    186,071.09x = 256,778.37 × 101,188.13
  4. Step 4: Simplify right side
    186,071.09x = 25,982,921,800.86
  5. Step 5: Solve for x
    x = 25,982,921,800.86/186,071.09
  6. Step 6: Final answer
    x = 139,639.76

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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.