Home / 117,335.42-161,920.95-66,346.43

Finding the Fourth Proportional to 117,335.42, 161,920.95 and 66,346.43

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Solution

The fourth proportional to 117,335.42, 161,920.95 and 66,346.43 is: 91,556.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,335.42 : 161,920.95 = 66,346.43 : x
  2. Step 2: Convert to fraction form
    117,335.42/161,920.95 = 66,346.43/x
  3. Step 3: Cross multiply
    117,335.42x = 161,920.95 × 66,346.43
  4. Step 4: Simplify right side
    117,335.42x = 10,742,876,165.10
  5. Step 5: Solve for x
    x = 10,742,876,165.10/117,335.42
  6. Step 6: Final answer
    x = 91,556.98

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1.5x scale

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.