Home / 121,495.23-182,095.08-85,966.78

Finding the Fourth Proportional to 121,495.23, 182,095.08 and 85,966.78

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Solution

The fourth proportional to 121,495.23, 182,095.08 and 85,966.78 is: 128,845.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,495.23 : 182,095.08 = 85,966.78 : x
  2. Step 2: Convert to fraction form
    121,495.23/182,095.08 = 85,966.78/x
  3. Step 3: Cross multiply
    121,495.23x = 182,095.08 × 85,966.78
  4. Step 4: Simplify right side
    121,495.23x = 15,654,127,681.44
  5. Step 5: Solve for x
    x = 15,654,127,681.44/121,495.23
  6. Step 6: Final answer
    x = 128,845.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.