Home / 217,365.15-299,947.41-121,853.73

Finding the Fourth Proportional to 217,365.15, 299,947.41 and 121,853.73

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Solution

The fourth proportional to 217,365.15, 299,947.41 and 121,853.73 is: 168,148.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,365.15 : 299,947.41 = 121,853.73 : x
  2. Step 2: Convert to fraction form
    217,365.15/299,947.41 = 121,853.73/x
  3. Step 3: Cross multiply
    217,365.15x = 299,947.41 × 121,853.73
  4. Step 4: Simplify right side
    217,365.15x = 36,549,710,712.34
  5. Step 5: Solve for x
    x = 36,549,710,712.34/217,365.15
  6. Step 6: Final answer
    x = 168,148.90

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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.