Home / 154,019.20-231,028.80-112,547.20

Finding the Fourth Proportional to 154,019.20, 231,028.80 and 112,547.20

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Solution

The fourth proportional to 154,019.20, 231,028.80 and 112,547.20 is: 168,820.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,019.20 : 231,028.80 = 112,547.20 : x
  2. Step 2: Convert to fraction form
    154,019.20/231,028.80 = 112,547.20/x
  3. Step 3: Cross multiply
    154,019.20x = 231,028.80 × 112,547.20
  4. Step 4: Simplify right side
    154,019.20x = 26,001,644,559.36
  5. Step 5: Solve for x
    x = 26,001,644,559.36/154,019.20
  6. Step 6: Final answer
    x = 168,820.80

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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.