Home / 110,268.30-165,074.40-72,870.60

Finding the Fourth Proportional to 110,268.30, 165,074.40 and 72,870.60

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Solution

The fourth proportional to 110,268.30, 165,074.40 and 72,870.60 is: 109,089.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,268.30 : 165,074.40 = 72,870.60 : x
  2. Step 2: Convert to fraction form
    110,268.30/165,074.40 = 72,870.60/x
  3. Step 3: Cross multiply
    110,268.30x = 165,074.40 × 72,870.60
  4. Step 4: Simplify right side
    110,268.30x = 12,029,070,572.64
  5. Step 5: Solve for x
    x = 12,029,070,572.64/110,268.30
  6. Step 6: Final answer
    x = 109,089.11

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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.