Home / 203,561.16-280,916.10-112,923.02

Finding the Fourth Proportional to 203,561.16, 280,916.10 and 112,923.02

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Solution

The fourth proportional to 203,561.16, 280,916.10 and 112,923.02 is: 155,834.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,561.16 : 280,916.10 = 112,923.02 : x
  2. Step 2: Convert to fraction form
    203,561.16/280,916.10 = 112,923.02/x
  3. Step 3: Cross multiply
    203,561.16x = 280,916.10 × 112,923.02
  4. Step 4: Simplify right side
    203,561.16x = 31,721,892,974.04
  5. Step 5: Solve for x
    x = 31,721,892,974.04/203,561.16
  6. Step 6: Final answer
    x = 155,834.70

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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.