Home / 118,343.20-177,514.80-74,106.40

Finding the Fourth Proportional to 118,343.20, 177,514.80 and 74,106.40

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Solution

The fourth proportional to 118,343.20, 177,514.80 and 74,106.40 is: 111,159.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,343.20 : 177,514.80 = 74,106.40 : x
  2. Step 2: Convert to fraction form
    118,343.20/177,514.80 = 74,106.40/x
  3. Step 3: Cross multiply
    118,343.20x = 177,514.80 × 74,106.40
  4. Step 4: Simplify right side
    118,343.20x = 13,154,982,774.72
  5. Step 5: Solve for x
    x = 13,154,982,774.72/118,343.20
  6. Step 6: Final answer
    x = 111,159.60

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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.