Home / 101,786.83-152,655.64-42,666.75

Finding the Fourth Proportional to 101,786.83, 152,655.64 and 42,666.75

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Solution

The fourth proportional to 101,786.83, 152,655.64 and 42,666.75 is: 63,989.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,786.83 : 152,655.64 = 42,666.75 : x
  2. Step 2: Convert to fraction form
    101,786.83/152,655.64 = 42,666.75/x
  3. Step 3: Cross multiply
    101,786.83x = 152,655.64 × 42,666.75
  4. Step 4: Simplify right side
    101,786.83x = 6,513,319,921.30
  5. Step 5: Solve for x
    x = 6,513,319,921.30/101,786.83
  6. Step 6: Final answer
    x = 63,989.81

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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.