Home / 142,046,103.06-196,002,605.25-86,262,513.30

Finding the Fourth Proportional to 142,046,103.06, 196,002,605.25 and 86,262,513.30

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Solution

The fourth proportional to 142,046,103.06, 196,002,605.25 and 86,262,513.30 is: 119,029,505.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,046,103.06 : 196,002,605.25 = 86,262,513.30 : x
  2. Step 2: Convert to fraction form
    142,046,103.06/196,002,605.25 = 86,262,513.30/x
  3. Step 3: Cross multiply
    142,046,103.06x = 196,002,605.25 × 86,262,513.30
  4. Step 4: Simplify right side
    142,046,103.06x = 16,907,677,342,212,774
  5. Step 5: Solve for x
    x = 16,907,677,342,212,774/142,046,103.06
  6. Step 6: Final answer
    x = 119,029,505.05

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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.