Home / 144,387.42-216,432.09-69,394.38

Finding the Fourth Proportional to 144,387.42, 216,432.09 and 69,394.38

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Solution

The fourth proportional to 144,387.42, 216,432.09 and 69,394.38 is: 104,019.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,387.42 : 216,432.09 = 69,394.38 : x
  2. Step 2: Convert to fraction form
    144,387.42/216,432.09 = 69,394.38/x
  3. Step 3: Cross multiply
    144,387.42x = 216,432.09 × 69,394.38
  4. Step 4: Simplify right side
    144,387.42x = 15,019,170,697.65
  5. Step 5: Solve for x
    x = 15,019,170,697.65/144,387.42
  6. Step 6: Final answer
    x = 104,019.94

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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.