Home / 134,124.69-185,108.17-80,439.24

Finding the Fourth Proportional to 134,124.69, 185,108.17 and 80,439.24

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Solution

The fourth proportional to 134,124.69, 185,108.17 and 80,439.24 is: 111,015.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,124.69 : 185,108.17 = 80,439.24 : x
  2. Step 2: Convert to fraction form
    134,124.69/185,108.17 = 80,439.24/x
  3. Step 3: Cross multiply
    134,124.69x = 185,108.17 × 80,439.24
  4. Step 4: Simplify right side
    134,124.69x = 14,889,961,156.47
  5. Step 5: Solve for x
    x = 14,889,961,156.47/134,124.69
  6. Step 6: Final answer
    x = 111,015.81

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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.