Home / 123,421.36-185,138.39-34,681.79

Finding the Fourth Proportional to 123,421.36, 185,138.39 and 34,681.79

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Solution

The fourth proportional to 123,421.36, 185,138.39 and 34,681.79 is: 52,024.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,421.36 : 185,138.39 = 34,681.79 : x
  2. Step 2: Convert to fraction form
    123,421.36/185,138.39 = 34,681.79/x
  3. Step 3: Cross multiply
    123,421.36x = 185,138.39 × 34,681.79
  4. Step 4: Simplify right side
    123,421.36x = 6,420,929,663.82
  5. Step 5: Solve for x
    x = 6,420,929,663.82/123,421.36
  6. Step 6: Final answer
    x = 52,024.46

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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.