Home / 160,431.17-221,407.31-91,522.15

Finding the Fourth Proportional to 160,431.17, 221,407.31 and 91,522.15

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Solution

The fourth proportional to 160,431.17, 221,407.31 and 91,522.15 is: 126,307.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,431.17 : 221,407.31 = 91,522.15 : x
  2. Step 2: Convert to fraction form
    160,431.17/221,407.31 = 91,522.15/x
  3. Step 3: Cross multiply
    160,431.17x = 221,407.31 × 91,522.15
  4. Step 4: Simplify right side
    160,431.17x = 20,263,672,025.79
  5. Step 5: Solve for x
    x = 20,263,672,025.79/160,431.17
  6. Step 6: Final answer
    x = 126,307.58

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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.