Home / 119,851.20-165,393.54-66,136.64

Finding the Fourth Proportional to 119,851.20, 165,393.54 and 66,136.64

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Solution

The fourth proportional to 119,851.20, 165,393.54 and 66,136.64 is: 91,267.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,851.20 : 165,393.54 = 66,136.64 : x
  2. Step 2: Convert to fraction form
    119,851.20/165,393.54 = 66,136.64/x
  3. Step 3: Cross multiply
    119,851.20x = 165,393.54 × 66,136.64
  4. Step 4: Simplify right side
    119,851.20x = 10,938,572,186.34
  5. Step 5: Solve for x
    x = 10,938,572,186.34/119,851.20
  6. Step 6: Final answer
    x = 91,267.94

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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.