Home / 209,422.13-288,980.66-118,749.11

Finding the Fourth Proportional to 209,422.13, 288,980.66 and 118,749.11

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Solution

The fourth proportional to 209,422.13, 288,980.66 and 118,749.11 is: 163,861.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,422.13 : 288,980.66 = 118,749.11 : x
  2. Step 2: Convert to fraction form
    209,422.13/288,980.66 = 118,749.11/x
  3. Step 3: Cross multiply
    209,422.13x = 288,980.66 × 118,749.11
  4. Step 4: Simplify right side
    209,422.13x = 34,316,195,034.18
  5. Step 5: Solve for x
    x = 34,316,195,034.18/209,422.13
  6. Step 6: Final answer
    x = 163,861.36

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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.