Home / 144,005.60-215,716.80-99,682.40

Finding the Fourth Proportional to 144,005.60, 215,716.80 and 99,682.40

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Solution

The fourth proportional to 144,005.60, 215,716.80 and 99,682.40 is: 149,321.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,005.60 : 215,716.80 = 99,682.40 : x
  2. Step 2: Convert to fraction form
    144,005.60/215,716.80 = 99,682.40/x
  3. Step 3: Cross multiply
    144,005.60x = 215,716.80 × 99,682.40
  4. Step 4: Simplify right side
    144,005.60x = 21,503,168,344.32
  5. Step 5: Solve for x
    x = 21,503,168,344.32/144,005.60
  6. Step 6: Final answer
    x = 149,321.75

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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.