Home / 144,340.64-199,184.73-80,679.50

Finding the Fourth Proportional to 144,340.64, 199,184.73 and 80,679.50

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Solution

The fourth proportional to 144,340.64, 199,184.73 and 80,679.50 is: 111,334.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,340.64 : 199,184.73 = 80,679.50 : x
  2. Step 2: Convert to fraction form
    144,340.64/199,184.73 = 80,679.50/x
  3. Step 3: Cross multiply
    144,340.64x = 199,184.73 × 80,679.50
  4. Step 4: Simplify right side
    144,340.64x = 16,070,124,424.04
  5. Step 5: Solve for x
    x = 16,070,124,424.04/144,340.64
  6. Step 6: Final answer
    x = 111,334.72

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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.