Home / 152,309.28-210,186.78-85,241.28

Finding the Fourth Proportional to 152,309.28, 210,186.78 and 85,241.28

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Solution

The fourth proportional to 152,309.28, 210,186.78 and 85,241.28 is: 117,632.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,309.28 : 210,186.78 = 85,241.28 : x
  2. Step 2: Convert to fraction form
    152,309.28/210,186.78 = 85,241.28/x
  3. Step 3: Cross multiply
    152,309.28x = 210,186.78 × 85,241.28
  4. Step 4: Simplify right side
    152,309.28x = 17,916,590,166.28
  5. Step 5: Solve for x
    x = 17,916,590,166.28/152,309.28
  6. Step 6: Final answer
    x = 117,632.95

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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.