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Finding the Fourth Proportional to 152,695, 210,720.18 and 93,079

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Solution

The fourth proportional to 152,695, 210,720.18 and 93,079 is: 128,449.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,695 : 210,720.18 = 93,079 : x
  2. Step 2: Convert to fraction form
    152,695/210,720.18 = 93,079/x
  3. Step 3: Cross multiply
    152,695x = 210,720.18 × 93,079
  4. Step 4: Simplify right side
    152,695x = 19,613,623,634.22
  5. Step 5: Solve for x
    x = 19,613,623,634.22/152,695
  6. Step 6: Final answer
    x = 128,449.68

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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.