Home / 119,631.60-165,089.34-65,921.58

Finding the Fourth Proportional to 119,631.60, 165,089.34 and 65,921.58

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Solution

The fourth proportional to 119,631.60, 165,089.34 and 65,921.58 is: 90,970.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,631.60 : 165,089.34 = 65,921.58 : x
  2. Step 2: Convert to fraction form
    119,631.60/165,089.34 = 65,921.58/x
  3. Step 3: Cross multiply
    119,631.60x = 165,089.34 × 65,921.58
  4. Step 4: Simplify right side
    119,631.60x = 10,882,950,133.96
  5. Step 5: Solve for x
    x = 10,882,950,133.96/119,631.60
  6. Step 6: Final answer
    x = 90,970.53

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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.