Home / 102,964.29-142,093.43-57,642.08

Finding the Fourth Proportional to 102,964.29, 142,093.43 and 57,642.08

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Solution

The fourth proportional to 102,964.29, 142,093.43 and 57,642.08 is: 79,547.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,964.29 : 142,093.43 = 57,642.08 : x
  2. Step 2: Convert to fraction form
    102,964.29/142,093.43 = 57,642.08/x
  3. Step 3: Cross multiply
    102,964.29x = 142,093.43 × 57,642.08
  4. Step 4: Simplify right side
    102,964.29x = 8,190,559,860.86
  5. Step 5: Solve for x
    x = 8,190,559,860.86/102,964.29
  6. Step 6: Final answer
    x = 79,547.58

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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.