Home / 117,023.20-161,492.78-71,701.28

Finding the Fourth Proportional to 117,023.20, 161,492.78 and 71,701.28

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Solution

The fourth proportional to 117,023.20, 161,492.78 and 71,701.28 is: 98,948.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,023.20 : 161,492.78 = 71,701.28 : x
  2. Step 2: Convert to fraction form
    117,023.20/161,492.78 = 71,701.28/x
  3. Step 3: Cross multiply
    117,023.20x = 161,492.78 × 71,701.28
  4. Step 4: Simplify right side
    117,023.20x = 11,579,239,036.76
  5. Step 5: Solve for x
    x = 11,579,239,036.76/117,023.20
  6. Step 6: Final answer
    x = 98,948.23

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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.