Home / 119,811.87-165,369.15-72,055.98

Finding the Fourth Proportional to 119,811.87, 165,369.15 and 72,055.98

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Solution

The fourth proportional to 119,811.87, 165,369.15 and 72,055.98 is: 99,454.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,811.87 : 165,369.15 = 72,055.98 : x
  2. Step 2: Convert to fraction form
    119,811.87/165,369.15 = 72,055.98/x
  3. Step 3: Cross multiply
    119,811.87x = 165,369.15 × 72,055.98
  4. Step 4: Simplify right side
    119,811.87x = 11,915,836,165.02
  5. Step 5: Solve for x
    x = 11,915,836,165.02/119,811.87
  6. Step 6: Final answer
    x = 99,454.55

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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.