Home / 103,186.04-142,395.30-57,864

Finding the Fourth Proportional to 103,186.04, 142,395.30 and 57,864

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Solution

The fourth proportional to 103,186.04, 142,395.30 and 57,864 is: 79,851.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,186.04 : 142,395.30 = 57,864 : x
  2. Step 2: Convert to fraction form
    103,186.04/142,395.30 = 57,864/x
  3. Step 3: Cross multiply
    103,186.04x = 142,395.30 × 57,864
  4. Step 4: Simplify right side
    103,186.04x = 8,239,561,639.20
  5. Step 5: Solve for x
    x = 8,239,561,639.20/103,186.04
  6. Step 6: Final answer
    x = 79,851.52

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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.