Home / 142,362.14-196,459.68-85,784.44

Finding the Fourth Proportional to 142,362.14, 196,459.68 and 85,784.44

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Solution

The fourth proportional to 142,362.14, 196,459.68 and 85,784.44 is: 118,382.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,362.14 : 196,459.68 = 85,784.44 : x
  2. Step 2: Convert to fraction form
    142,362.14/196,459.68 = 85,784.44/x
  3. Step 3: Cross multiply
    142,362.14x = 196,459.68 × 85,784.44
  4. Step 4: Simplify right side
    142,362.14x = 16,853,183,631.38
  5. Step 5: Solve for x
    x = 16,853,183,631.38/142,362.14
  6. Step 6: Final answer
    x = 118,382.48

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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.