Home / 102,121.97-153,326.47-52,237.86

Finding the Fourth Proportional to 102,121.97, 153,326.47 and 52,237.86

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Solution

The fourth proportional to 102,121.97, 153,326.47 and 52,237.86 is: 78,430.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,121.97 : 153,326.47 = 52,237.86 : x
  2. Step 2: Convert to fraction form
    102,121.97/153,326.47 = 52,237.86/x
  3. Step 3: Cross multiply
    102,121.97x = 153,326.47 × 52,237.86
  4. Step 4: Simplify right side
    102,121.97x = 8,009,446,928.99
  5. Step 5: Solve for x
    x = 8,009,446,928.99/102,121.97
  6. Step 6: Final answer
    x = 78,430.21

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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.