Home / 315,121.25-472,743.34-101,942.01

Finding the Fourth Proportional to 315,121.25, 472,743.34 and 101,942.01

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Solution

The fourth proportional to 315,121.25, 472,743.34 and 101,942.01 is: 152,932.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,121.25 : 472,743.34 = 101,942.01 : x
  2. Step 2: Convert to fraction form
    315,121.25/472,743.34 = 101,942.01/x
  3. Step 3: Cross multiply
    315,121.25x = 472,743.34 × 101,942.01
  4. Step 4: Simplify right side
    315,121.25x = 48,192,406,038.86
  5. Step 5: Solve for x
    x = 48,192,406,038.86/315,121.25
  6. Step 6: Final answer
    x = 152,932.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.