Home / 118,367.20-177,550.80-74,130.40

Finding the Fourth Proportional to 118,367.20, 177,550.80 and 74,130.40

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Solution

The fourth proportional to 118,367.20, 177,550.80 and 74,130.40 is: 111,195.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,367.20 : 177,550.80 = 74,130.40 : x
  2. Step 2: Convert to fraction form
    118,367.20/177,550.80 = 74,130.40/x
  3. Step 3: Cross multiply
    118,367.20x = 177,550.80 × 74,130.40
  4. Step 4: Simplify right side
    118,367.20x = 13,161,911,824.32
  5. Step 5: Solve for x
    x = 13,161,911,824.32/118,367.20
  6. Step 6: Final answer
    x = 111,195.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.