Home / 115,401.12-173,122.74-53,070

Finding the Fourth Proportional to 115,401.12, 173,122.74 and 53,070

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Solution

The fourth proportional to 115,401.12, 173,122.74 and 53,070 is: 79,614.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,401.12 : 173,122.74 = 53,070 : x
  2. Step 2: Convert to fraction form
    115,401.12/173,122.74 = 53,070/x
  3. Step 3: Cross multiply
    115,401.12x = 173,122.74 × 53,070
  4. Step 4: Simplify right side
    115,401.12x = 9,187,623,811.80
  5. Step 5: Solve for x
    x = 9,187,623,811.80/115,401.12
  6. Step 6: Final answer
    x = 79,614.68

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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.