Home / 115,102.81-158,842.16-66,714.07

Finding the Fourth Proportional to 115,102.81, 158,842.16 and 66,714.07

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Solution

The fourth proportional to 115,102.81, 158,842.16 and 66,714.07 is: 92,065.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,102.81 : 158,842.16 = 66,714.07 : x
  2. Step 2: Convert to fraction form
    115,102.81/158,842.16 = 66,714.07/x
  3. Step 3: Cross multiply
    115,102.81x = 158,842.16 × 66,714.07
  4. Step 4: Simplify right side
    115,102.81x = 10,597,006,981.19
  5. Step 5: Solve for x
    x = 10,597,006,981.19/115,102.81
  6. Step 6: Final answer
    x = 92,065.58

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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.