Home / 208,129.23-312,002.48-74,976.93

Finding the Fourth Proportional to 208,129.23, 312,002.48 and 74,976.93

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Solution

The fourth proportional to 208,129.23, 312,002.48 and 74,976.93 is: 112,396.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,129.23 : 312,002.48 = 74,976.93 : x
  2. Step 2: Convert to fraction form
    208,129.23/312,002.48 = 74,976.93/x
  3. Step 3: Cross multiply
    208,129.23x = 312,002.48 × 74,976.93
  4. Step 4: Simplify right side
    208,129.23x = 23,392,988,102.79
  5. Step 5: Solve for x
    x = 23,392,988,102.79/208,129.23
  6. Step 6: Final answer
    x = 112,396.46

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1.5x scale

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.