Home / 144,339.17-199,188.72-80,675.60

Finding the Fourth Proportional to 144,339.17, 199,188.72 and 80,675.60

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Solution

The fourth proportional to 144,339.17, 199,188.72 and 80,675.60 is: 111,332.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,339.17 : 199,188.72 = 80,675.60 : x
  2. Step 2: Convert to fraction form
    144,339.17/199,188.72 = 80,675.60/x
  3. Step 3: Cross multiply
    144,339.17x = 199,188.72 × 80,675.60
  4. Step 4: Simplify right side
    144,339.17x = 16,069,668,503.29
  5. Step 5: Solve for x
    x = 16,069,668,503.29/144,339.17
  6. Step 6: Final answer
    x = 111,332.70

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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.