Home / 154,834.08-213,670.88-87,766.08

Finding the Fourth Proportional to 154,834.08, 213,670.88 and 87,766.08

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Solution

The fourth proportional to 154,834.08, 213,670.88 and 87,766.08 is: 121,117.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,834.08 : 213,670.88 = 87,766.08 : x
  2. Step 2: Convert to fraction form
    154,834.08/213,670.88 = 87,766.08/x
  3. Step 3: Cross multiply
    154,834.08x = 213,670.88 × 87,766.08
  4. Step 4: Simplify right side
    154,834.08x = 18,753,055,547.75
  5. Step 5: Solve for x
    x = 18,753,055,547.75/154,834.08
  6. Step 6: Final answer
    x = 121,117.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.