Home / 186,077.28-256,781.16-105,512.16

Finding the Fourth Proportional to 186,077.28, 256,781.16 and 105,512.16

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Solution

The fourth proportional to 186,077.28, 256,781.16 and 105,512.16 is: 145,603.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,077.28 : 256,781.16 = 105,512.16 : x
  2. Step 2: Convert to fraction form
    186,077.28/256,781.16 = 105,512.16/x
  3. Step 3: Cross multiply
    186,077.28x = 256,781.16 × 105,512.16
  4. Step 4: Simplify right side
    186,077.28x = 27,093,534,838.91
  5. Step 5: Solve for x
    x = 27,093,534,838.91/186,077.28
  6. Step 6: Final answer
    x = 145,603.67

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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.