Home / 118,272.70-177,117.45-78,615.10

Finding the Fourth Proportional to 118,272.70, 177,117.45 and 78,615.10

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Solution

The fourth proportional to 118,272.70, 177,117.45 and 78,615.10 is: 117,728.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,272.70 : 177,117.45 = 78,615.10 : x
  2. Step 2: Convert to fraction form
    118,272.70/177,117.45 = 78,615.10/x
  3. Step 3: Cross multiply
    118,272.70x = 177,117.45 × 78,615.10
  4. Step 4: Simplify right side
    118,272.70x = 13,924,106,043.50
  5. Step 5: Solve for x
    x = 13,924,106,043.50/118,272.70
  6. Step 6: Final answer
    x = 117,728.83

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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.