Home / 131,742.12-197,644.62-42,995.76

Finding the Fourth Proportional to 131,742.12, 197,644.62 and 42,995.76

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Solution

The fourth proportional to 131,742.12, 197,644.62 and 42,995.76 is: 64,503.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,742.12 : 197,644.62 = 42,995.76 : x
  2. Step 2: Convert to fraction form
    131,742.12/197,644.62 = 42,995.76/x
  3. Step 3: Cross multiply
    131,742.12x = 197,644.62 × 42,995.76
  4. Step 4: Simplify right side
    131,742.12x = 8,497,880,646.81
  5. Step 5: Solve for x
    x = 8,497,880,646.81/131,742.12
  6. Step 6: Final answer
    x = 64,503.90

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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.