Home / 155,521.80-233,109.90-66,760.20

Finding the Fourth Proportional to 155,521.80, 233,109.90 and 66,760.20

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Solution

The fourth proportional to 155,521.80, 233,109.90 and 66,760.20 is: 100,066.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,521.80 : 233,109.90 = 66,760.20 : x
  2. Step 2: Convert to fraction form
    155,521.80/233,109.90 = 66,760.20/x
  3. Step 3: Cross multiply
    155,521.80x = 233,109.90 × 66,760.20
  4. Step 4: Simplify right side
    155,521.80x = 15,562,463,545.98
  5. Step 5: Solve for x
    x = 15,562,463,545.98/155,521.80
  6. Step 6: Final answer
    x = 100,066.12

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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.