Home / 209,325.12-288,870.60-113,832.72

Finding the Fourth Proportional to 209,325.12, 288,870.60 and 113,832.72

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Solution

The fourth proportional to 209,325.12, 288,870.60 and 113,832.72 is: 157,090.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,325.12 : 288,870.60 = 113,832.72 : x
  2. Step 2: Convert to fraction form
    209,325.12/288,870.60 = 113,832.72/x
  3. Step 3: Cross multiply
    209,325.12x = 288,870.60 × 113,832.72
  4. Step 4: Simplify right side
    209,325.12x = 32,882,926,126.03
  5. Step 5: Solve for x
    x = 32,882,926,126.03/209,325.12
  6. Step 6: Final answer
    x = 157,090.21

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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.