Home / 109,122.09-150,503.13-70,893.93

Finding the Fourth Proportional to 109,122.09, 150,503.13 and 70,893.93

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Solution

The fourth proportional to 109,122.09, 150,503.13 and 70,893.93 is: 97,778.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,122.09 : 150,503.13 = 70,893.93 : x
  2. Step 2: Convert to fraction form
    109,122.09/150,503.13 = 70,893.93/x
  3. Step 3: Cross multiply
    109,122.09x = 150,503.13 × 70,893.93
  4. Step 4: Simplify right side
    109,122.09x = 10,669,758,927.39
  5. Step 5: Solve for x
    x = 10,669,758,927.39/109,122.09
  6. Step 6: Final answer
    x = 97,778.18

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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.