Home / 209,042.81-288,479.63-113,548.73

Finding the Fourth Proportional to 209,042.81, 288,479.63 and 113,548.73

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Solution

The fourth proportional to 209,042.81, 288,479.63 and 113,548.73 is: 156,697.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,042.81 : 288,479.63 = 113,548.73 : x
  2. Step 2: Convert to fraction form
    209,042.81/288,479.63 = 113,548.73/x
  3. Step 3: Cross multiply
    209,042.81x = 288,479.63 × 113,548.73
  4. Step 4: Simplify right side
    209,042.81x = 32,756,495,049.63
  5. Step 5: Solve for x
    x = 32,756,495,049.63/209,042.81
  6. Step 6: Final answer
    x = 156,697.54

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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.