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Finding the Fourth Proportional to 160,790, 241,329.55 and 85,974.10

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Solution

The fourth proportional to 160,790, 241,329.55 and 85,974.10 is: 129,038.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,790 : 241,329.55 = 85,974.10 : x
  2. Step 2: Convert to fraction form
    160,790/241,329.55 = 85,974.10/x
  3. Step 3: Cross multiply
    160,790x = 241,329.55 × 85,974.10
  4. Step 4: Simplify right side
    160,790x = 20,748,090,864.66
  5. Step 5: Solve for x
    x = 20,748,090,864.66/160,790
  6. Step 6: Final answer
    x = 129,038.44

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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.