Home / 138,924.90-208,381.55-58,940.91

Finding the Fourth Proportional to 138,924.90, 208,381.55 and 58,940.91

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Solution

The fourth proportional to 138,924.90, 208,381.55 and 58,940.91 is: 88,408.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,924.90 : 208,381.55 = 58,940.91 : x
  2. Step 2: Convert to fraction form
    138,924.90/208,381.55 = 58,940.91/x
  3. Step 3: Cross multiply
    138,924.90x = 208,381.55 × 58,940.91
  4. Step 4: Simplify right side
    138,924.90x = 12,282,197,889.51
  5. Step 5: Solve for x
    x = 12,282,197,889.51/138,924.90
  6. Step 6: Final answer
    x = 88,408.90

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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.