Home / 74,218.80-111,328.20-71,594.40

Finding the Fourth Proportional to 74,218.80, 111,328.20 and 71,594.40

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Solution

The fourth proportional to 74,218.80, 111,328.20 and 71,594.40 is: 107,391.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,218.80 : 111,328.20 = 71,594.40 : x
  2. Step 2: Convert to fraction form
    74,218.80/111,328.20 = 71,594.40/x
  3. Step 3: Cross multiply
    74,218.80x = 111,328.20 × 71,594.40
  4. Step 4: Simplify right side
    74,218.80x = 7,970,475,682.08
  5. Step 5: Solve for x
    x = 7,970,475,682.08/74,218.80
  6. Step 6: Final answer
    x = 107,391.60

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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.