Home / 142,065.73-196,044.52-77,533.30

Finding the Fourth Proportional to 142,065.73, 196,044.52 and 77,533.30

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Solution

The fourth proportional to 142,065.73, 196,044.52 and 77,533.30 is: 106,992.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,065.73 : 196,044.52 = 77,533.30 : x
  2. Step 2: Convert to fraction form
    142,065.73/196,044.52 = 77,533.30/x
  3. Step 3: Cross multiply
    142,065.73x = 196,044.52 × 77,533.30
  4. Step 4: Simplify right side
    142,065.73x = 15,199,977,214.63
  5. Step 5: Solve for x
    x = 15,199,977,214.63/142,065.73
  6. Step 6: Final answer
    x = 106,992.57

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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.