Home / 123,900,992.88-170,976,350.52-68,895,668.40

Finding the Fourth Proportional to 123,900,992.88, 170,976,350.52 and 68,895,668.40

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Solution

The fourth proportional to 123,900,992.88, 170,976,350.52 and 68,895,668.40 is: 95,072,119.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,900,992.88 : 170,976,350.52 = 68,895,668.40 : x
  2. Step 2: Convert to fraction form
    123,900,992.88/170,976,350.52 = 68,895,668.40/x
  3. Step 3: Cross multiply
    123,900,992.88x = 170,976,350.52 × 68,895,668.40
  4. Step 4: Simplify right side
    123,900,992.88x = 11,779,529,949,668,090
  5. Step 5: Solve for x
    x = 11,779,529,949,668,090/123,900,992.88
  6. Step 6: Final answer
    x = 95,072,119.08

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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.