Home / 203,381.47-280,636.92-112,737.38

Finding the Fourth Proportional to 203,381.47, 280,636.92 and 112,737.38

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Solution

The fourth proportional to 203,381.47, 280,636.92 and 112,737.38 is: 155,561.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,381.47 : 280,636.92 = 112,737.38 : x
  2. Step 2: Convert to fraction form
    203,381.47/280,636.92 = 112,737.38/x
  3. Step 3: Cross multiply
    203,381.47x = 280,636.92 × 112,737.38
  4. Step 4: Simplify right side
    203,381.47x = 31,638,269,688.89
  5. Step 5: Solve for x
    x = 31,638,269,688.89/203,381.47
  6. Step 6: Final answer
    x = 155,561.22

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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.