Home / 115,384.64-172,741.78-67,206.35

Finding the Fourth Proportional to 115,384.64, 172,741.78 and 67,206.35

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Solution

The fourth proportional to 115,384.64, 172,741.78 and 67,206.35 is: 100,614.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,384.64 : 172,741.78 = 67,206.35 : x
  2. Step 2: Convert to fraction form
    115,384.64/172,741.78 = 67,206.35/x
  3. Step 3: Cross multiply
    115,384.64x = 172,741.78 × 67,206.35
  4. Step 4: Simplify right side
    115,384.64x = 11,609,344,526.30
  5. Step 5: Solve for x
    x = 11,609,344,526.30/115,384.64
  6. Step 6: Final answer
    x = 100,614.30

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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.