Home / 142,178.41-213,398.84-72,106.93

Finding the Fourth Proportional to 142,178.41, 213,398.84 and 72,106.93

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Solution

The fourth proportional to 142,178.41, 213,398.84 and 72,106.93 is: 108,226.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,178.41 : 213,398.84 = 72,106.93 : x
  2. Step 2: Convert to fraction form
    142,178.41/213,398.84 = 72,106.93/x
  3. Step 3: Cross multiply
    142,178.41x = 213,398.84 × 72,106.93
  4. Step 4: Simplify right side
    142,178.41x = 15,387,534,857.43
  5. Step 5: Solve for x
    x = 15,387,534,857.43/142,178.41
  6. Step 6: Final answer
    x = 108,226.94

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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.