Home / 131,470.03-181,443.06-76,291.51

Finding the Fourth Proportional to 131,470.03, 181,443.06 and 76,291.51

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Solution

The fourth proportional to 131,470.03, 181,443.06 and 76,291.51 is: 105,290.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,470.03 : 181,443.06 = 76,291.51 : x
  2. Step 2: Convert to fraction form
    131,470.03/181,443.06 = 76,291.51/x
  3. Step 3: Cross multiply
    131,470.03x = 181,443.06 × 76,291.51
  4. Step 4: Simplify right side
    131,470.03x = 13,842,565,026.42
  5. Step 5: Solve for x
    x = 13,842,565,026.42/131,470.03
  6. Step 6: Final answer
    x = 105,290.65

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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.