Home / 119,933.51-165,510.82-66,221.92

Finding the Fourth Proportional to 119,933.51, 165,510.82 and 66,221.92

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Solution

The fourth proportional to 119,933.51, 165,510.82 and 66,221.92 is: 91,387.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,933.51 : 165,510.82 = 66,221.92 : x
  2. Step 2: Convert to fraction form
    119,933.51/165,510.82 = 66,221.92/x
  3. Step 3: Cross multiply
    119,933.51x = 165,510.82 × 66,221.92
  4. Step 4: Simplify right side
    119,933.51x = 10,960,444,281.17
  5. Step 5: Solve for x
    x = 10,960,444,281.17/119,933.51
  6. Step 6: Final answer
    x = 91,387.67

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1.5x scale

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.