Home / 119,445.12-164,837.76-65,731.68

Finding the Fourth Proportional to 119,445.12, 164,837.76 and 65,731.68

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Solution

The fourth proportional to 119,445.12, 164,837.76 and 65,731.68 is: 90,711.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,445.12 : 164,837.76 = 65,731.68 : x
  2. Step 2: Convert to fraction form
    119,445.12/164,837.76 = 65,731.68/x
  3. Step 3: Cross multiply
    119,445.12x = 164,837.76 × 65,731.68
  4. Step 4: Simplify right side
    119,445.12x = 10,835,062,892.24
  5. Step 5: Solve for x
    x = 10,835,062,892.24/119,445.12
  6. Step 6: Final answer
    x = 90,711.64

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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.