Home / 118,328.36-163,251.30-75,909.80

Finding the Fourth Proportional to 118,328.36, 163,251.30 and 75,909.80

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Solution

The fourth proportional to 118,328.36, 163,251.30 and 75,909.80 is: 104,728.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,328.36 : 163,251.30 = 75,909.80 : x
  2. Step 2: Convert to fraction form
    118,328.36/163,251.30 = 75,909.80/x
  3. Step 3: Cross multiply
    118,328.36x = 163,251.30 × 75,909.80
  4. Step 4: Simplify right side
    118,328.36x = 12,392,373,532.74
  5. Step 5: Solve for x
    x = 12,392,373,532.74/118,328.36
  6. Step 6: Final answer
    x = 104,728.68

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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.