Home / 209,157.27-288,638.85-113,663.95

Finding the Fourth Proportional to 209,157.27, 288,638.85 and 113,663.95

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Solution

The fourth proportional to 209,157.27, 288,638.85 and 113,663.95 is: 156,857.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,157.27 : 288,638.85 = 113,663.95 : x
  2. Step 2: Convert to fraction form
    209,157.27/288,638.85 = 113,663.95/x
  3. Step 3: Cross multiply
    209,157.27x = 288,638.85 × 113,663.95
  4. Step 4: Simplify right side
    209,157.27x = 32,807,831,814.46
  5. Step 5: Solve for x
    x = 32,807,831,814.46/209,157.27
  6. Step 6: Final answer
    x = 156,857.24

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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.