Home / 121,209.40-181,800.18-46,327.88

Finding the Fourth Proportional to 121,209.40, 181,800.18 and 46,327.88

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Solution

The fourth proportional to 121,209.40, 181,800.18 and 46,327.88 is: 69,486.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,209.40 : 181,800.18 = 46,327.88 : x
  2. Step 2: Convert to fraction form
    121,209.40/181,800.18 = 46,327.88/x
  3. Step 3: Cross multiply
    121,209.40x = 181,800.18 × 46,327.88
  4. Step 4: Simplify right side
    121,209.40x = 8,422,416,923.02
  5. Step 5: Solve for x
    x = 8,422,416,923.02/121,209.40
  6. Step 6: Final answer
    x = 69,486.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.