Home / 150,778.32-208,065.96-83,706

Finding the Fourth Proportional to 150,778.32, 208,065.96 and 83,706

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Solution

The fourth proportional to 150,778.32, 208,065.96 and 83,706 is: 115,509.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,778.32 : 208,065.96 = 83,706 : x
  2. Step 2: Convert to fraction form
    150,778.32/208,065.96 = 83,706/x
  3. Step 3: Cross multiply
    150,778.32x = 208,065.96 × 83,706
  4. Step 4: Simplify right side
    150,778.32x = 17,416,369,247.76
  5. Step 5: Solve for x
    x = 17,416,369,247.76/150,778.32
  6. Step 6: Final answer
    x = 115,509.77

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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.