Home / 119,400.58-164,771.61-65,685.65

Finding the Fourth Proportional to 119,400.58, 164,771.61 and 65,685.65

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Solution

The fourth proportional to 119,400.58, 164,771.61 and 65,685.65 is: 90,645.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,400.58 : 164,771.61 = 65,685.65 : x
  2. Step 2: Convert to fraction form
    119,400.58/164,771.61 = 65,685.65/x
  3. Step 3: Cross multiply
    119,400.58x = 164,771.61 × 65,685.65
  4. Step 4: Simplify right side
    119,400.58x = 10,823,130,304.40
  5. Step 5: Solve for x
    x = 10,823,130,304.40/119,400.58
  6. Step 6: Final answer
    x = 90,645.55

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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.