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Finding the Fourth Proportional to 152,019.36, 209,805.93 and 88,344.86

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Solution

The fourth proportional to 152,019.36, 209,805.93 and 88,344.86 is: 121,927.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,019.36 : 209,805.93 = 88,344.86 : x
  2. Step 2: Convert to fraction form
    152,019.36/209,805.93 = 88,344.86/x
  3. Step 3: Cross multiply
    152,019.36x = 209,805.93 × 88,344.86
  4. Step 4: Simplify right side
    152,019.36x = 18,535,274,463.99
  5. Step 5: Solve for x
    x = 18,535,274,463.99/152,019.36
  6. Step 6: Final answer
    x = 121,927.07

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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.