Home / 131,470.53-181,443.75-76,292.01

Finding the Fourth Proportional to 131,470.53, 181,443.75 and 76,292.01

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Solution

The fourth proportional to 131,470.53, 181,443.75 and 76,292.01 is: 105,291.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,470.53 : 181,443.75 = 76,292.01 : x
  2. Step 2: Convert to fraction form
    131,470.53/181,443.75 = 76,292.01/x
  3. Step 3: Cross multiply
    131,470.53x = 181,443.75 × 76,292.01
  4. Step 4: Simplify right side
    131,470.53x = 13,842,708,389.44
  5. Step 5: Solve for x
    x = 13,842,708,389.44/131,470.53
  6. Step 6: Final answer
    x = 105,291.34

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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.