Home / 118,339.20-177,508.80-74,102.40

Finding the Fourth Proportional to 118,339.20, 177,508.80 and 74,102.40

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Solution

The fourth proportional to 118,339.20, 177,508.80 and 74,102.40 is: 111,153.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,339.20 : 177,508.80 = 74,102.40 : x
  2. Step 2: Convert to fraction form
    118,339.20/177,508.80 = 74,102.40/x
  3. Step 3: Cross multiply
    118,339.20x = 177,508.80 × 74,102.40
  4. Step 4: Simplify right side
    118,339.20x = 13,153,828,101.12
  5. Step 5: Solve for x
    x = 13,153,828,101.12/118,339.20
  6. Step 6: Final answer
    x = 111,153.60

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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.