Home / 102,964.77-142,089.39-57,642.84

Finding the Fourth Proportional to 102,964.77, 142,089.39 and 57,642.84

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Solution

The fourth proportional to 102,964.77, 142,089.39 and 57,642.84 is: 79,546.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,964.77 : 142,089.39 = 57,642.84 : x
  2. Step 2: Convert to fraction form
    102,964.77/142,089.39 = 57,642.84/x
  3. Step 3: Cross multiply
    102,964.77x = 142,089.39 × 57,642.84
  4. Step 4: Simplify right side
    102,964.77x = 8,190,435,973.47
  5. Step 5: Solve for x
    x = 8,190,435,973.47/102,964.77
  6. Step 6: Final answer
    x = 79,546.00

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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.