Home / 150,956.36-208,315.40-86,423.44

Finding the Fourth Proportional to 150,956.36, 208,315.40 and 86,423.44

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Solution

The fourth proportional to 150,956.36, 208,315.40 and 86,423.44 is: 119,261.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,956.36 : 208,315.40 = 86,423.44 : x
  2. Step 2: Convert to fraction form
    150,956.36/208,315.40 = 86,423.44/x
  3. Step 3: Cross multiply
    150,956.36x = 208,315.40 × 86,423.44
  4. Step 4: Simplify right side
    150,956.36x = 18,003,333,472.98
  5. Step 5: Solve for x
    x = 18,003,333,472.98/150,956.36
  6. Step 6: Final answer
    x = 119,261.84

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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.