Home / 134,951.67-186,255.75-80,510.86

Finding the Fourth Proportional to 134,951.67, 186,255.75 and 80,510.86

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Solution

The fourth proportional to 134,951.67, 186,255.75 and 80,510.86 is: 111,118.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,951.67 : 186,255.75 = 80,510.86 : x
  2. Step 2: Convert to fraction form
    134,951.67/186,255.75 = 80,510.86/x
  3. Step 3: Cross multiply
    134,951.67x = 186,255.75 × 80,510.86
  4. Step 4: Simplify right side
    134,951.67x = 14,995,611,147.18
  5. Step 5: Solve for x
    x = 14,995,611,147.18/134,951.67
  6. Step 6: Final answer
    x = 111,118.38

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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.