Home / 209,025.10-288,455.16-113,531.68

Finding the Fourth Proportional to 209,025.10, 288,455.16 and 113,531.68

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Solution

The fourth proportional to 209,025.10, 288,455.16 and 113,531.68 is: 156,674.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,025.10 : 288,455.16 = 113,531.68 : x
  2. Step 2: Convert to fraction form
    209,025.10/288,455.16 = 113,531.68/x
  3. Step 3: Cross multiply
    209,025.10x = 288,455.16 × 113,531.68
  4. Step 4: Simplify right side
    209,025.10x = 32,748,798,919.47
  5. Step 5: Solve for x
    x = 32,748,798,919.47/209,025.10
  6. Step 6: Final answer
    x = 156,674.00

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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.