Home / 115,374.47-159,231.02-66,966.03

Finding the Fourth Proportional to 115,374.47, 159,231.02 and 66,966.03

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Solution

The fourth proportional to 115,374.47, 159,231.02 and 66,966.03 is: 92,421.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,374.47 : 159,231.02 = 66,966.03 : x
  2. Step 2: Convert to fraction form
    115,374.47/159,231.02 = 66,966.03/x
  3. Step 3: Cross multiply
    115,374.47x = 159,231.02 × 66,966.03
  4. Step 4: Simplify right side
    115,374.47x = 10,663,068,927.42
  5. Step 5: Solve for x
    x = 10,663,068,927.42/115,374.47
  6. Step 6: Final answer
    x = 92,421.39

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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.