Home / 174,730.72-261,668.40-81,263.20

Finding the Fourth Proportional to 174,730.72, 261,668.40 and 81,263.20

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Solution

The fourth proportional to 174,730.72, 261,668.40 and 81,263.20 is: 121,695.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,730.72 : 261,668.40 = 81,263.20 : x
  2. Step 2: Convert to fraction form
    174,730.72/261,668.40 = 81,263.20/x
  3. Step 3: Cross multiply
    174,730.72x = 261,668.40 × 81,263.20
  4. Step 4: Simplify right side
    174,730.72x = 21,264,011,522.88
  5. Step 5: Solve for x
    x = 21,264,011,522.88/174,730.72
  6. Step 6: Final answer
    x = 121,695.90

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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.