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Finding the Fourth Proportional to 160,030.31, 240,196.14 and 81,201.11

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Solution

The fourth proportional to 160,030.31, 240,196.14 and 81,201.11 is: 121,878.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,030.31 : 240,196.14 = 81,201.11 : x
  2. Step 2: Convert to fraction form
    160,030.31/240,196.14 = 81,201.11/x
  3. Step 3: Cross multiply
    160,030.31x = 240,196.14 × 81,201.11
  4. Step 4: Simplify right side
    160,030.31x = 19,504,191,984.73
  5. Step 5: Solve for x
    x = 19,504,191,984.73/160,030.31
  6. Step 6: Final answer
    x = 121,878.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.