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Finding the Fourth Proportional to 161,181.80, 241,772.70 and 42,865.10

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Solution

The fourth proportional to 161,181.80, 241,772.70 and 42,865.10 is: 64,297.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,181.80 : 241,772.70 = 42,865.10 : x
  2. Step 2: Convert to fraction form
    161,181.80/241,772.70 = 42,865.10/x
  3. Step 3: Cross multiply
    161,181.80x = 241,772.70 × 42,865.10
  4. Step 4: Simplify right side
    161,181.80x = 10,363,610,962.77
  5. Step 5: Solve for x
    x = 10,363,610,962.77/161,181.80
  6. Step 6: Final answer
    x = 64,297.65

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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.