Home / 217,329.12-299,909.04-120,532.56

Finding the Fourth Proportional to 217,329.12, 299,909.04 and 120,532.56

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Solution

The fourth proportional to 217,329.12, 299,909.04 and 120,532.56 is: 166,332.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,329.12 : 299,909.04 = 120,532.56 : x
  2. Step 2: Convert to fraction form
    217,329.12/299,909.04 = 120,532.56/x
  3. Step 3: Cross multiply
    217,329.12x = 299,909.04 × 120,532.56
  4. Step 4: Simplify right side
    217,329.12x = 36,148,804,358.34
  5. Step 5: Solve for x
    x = 36,148,804,358.34/217,329.12
  6. Step 6: Final answer
    x = 166,332.08

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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.