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Finding the Fourth Proportional to 174,748.80, 262,123.20 and 79,978.80

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Solution

The fourth proportional to 174,748.80, 262,123.20 and 79,978.80 is: 119,968.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,748.80 : 262,123.20 = 79,978.80 : x
  2. Step 2: Convert to fraction form
    174,748.80/262,123.20 = 79,978.80/x
  3. Step 3: Cross multiply
    174,748.80x = 262,123.20 × 79,978.80
  4. Step 4: Simplify right side
    174,748.80x = 20,964,298,988.16
  5. Step 5: Solve for x
    x = 20,964,298,988.16/174,748.80
  6. Step 6: Final answer
    x = 119,968.20

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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.