Home / 142,649.59-196,856.08-82,219.75

Finding the Fourth Proportional to 142,649.59, 196,856.08 and 82,219.75

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Solution

The fourth proportional to 142,649.59, 196,856.08 and 82,219.75 is: 113,463.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,649.59 : 196,856.08 = 82,219.75 : x
  2. Step 2: Convert to fraction form
    142,649.59/196,856.08 = 82,219.75/x
  3. Step 3: Cross multiply
    142,649.59x = 196,856.08 × 82,219.75
  4. Step 4: Simplify right side
    142,649.59x = 16,185,457,683.58
  5. Step 5: Solve for x
    x = 16,185,457,683.58/142,649.59
  6. Step 6: Final answer
    x = 113,463.05

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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.