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Finding the Fourth Proportional to 139,581.03, 209,292.22 and 95,261.47

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Solution

The fourth proportional to 139,581.03, 209,292.22 and 95,261.47 is: 142,838.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,581.03 : 209,292.22 = 95,261.47 : x
  2. Step 2: Convert to fraction form
    139,581.03/209,292.22 = 95,261.47/x
  3. Step 3: Cross multiply
    139,581.03x = 209,292.22 × 95,261.47
  4. Step 4: Simplify right side
    139,581.03x = 19,937,484,536.76
  5. Step 5: Solve for x
    x = 19,937,484,536.76/139,581.03
  6. Step 6: Final answer
    x = 142,838.07

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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.