Home / 209,214.02-288,713.62-113,720.42

Finding the Fourth Proportional to 209,214.02, 288,713.62 and 113,720.42

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Solution

The fourth proportional to 209,214.02, 288,713.62 and 113,720.42 is: 156,933.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,214.02 : 288,713.62 = 113,720.42 : x
  2. Step 2: Convert to fraction form
    209,214.02/288,713.62 = 113,720.42/x
  3. Step 3: Cross multiply
    209,214.02x = 288,713.62 × 113,720.42
  4. Step 4: Simplify right side
    209,214.02x = 32,832,634,126.12
  5. Step 5: Solve for x
    x = 32,832,634,126.12/209,214.02
  6. Step 6: Final answer
    x = 156,933.24

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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.