Home / 192,020.40-288,030.60-67,345.20

Finding the Fourth Proportional to 192,020.40, 288,030.60 and 67,345.20

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Solution

The fourth proportional to 192,020.40, 288,030.60 and 67,345.20 is: 101,017.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,020.40 : 288,030.60 = 67,345.20 : x
  2. Step 2: Convert to fraction form
    192,020.40/288,030.60 = 67,345.20/x
  3. Step 3: Cross multiply
    192,020.40x = 288,030.60 × 67,345.20
  4. Step 4: Simplify right side
    192,020.40x = 19,397,478,363.12
  5. Step 5: Solve for x
    x = 19,397,478,363.12/192,020.40
  6. Step 6: Final answer
    x = 101,017.80

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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.