Home / 130,965.12-196,459.74-42,197.76

Finding the Fourth Proportional to 130,965.12, 196,459.74 and 42,197.76

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Solution

The fourth proportional to 130,965.12, 196,459.74 and 42,197.76 is: 63,300.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,965.12 : 196,459.74 = 42,197.76 : x
  2. Step 2: Convert to fraction form
    130,965.12/196,459.74 = 42,197.76/x
  3. Step 3: Cross multiply
    130,965.12x = 196,459.74 × 42,197.76
  4. Step 4: Simplify right side
    130,965.12x = 8,290,160,958.18
  5. Step 5: Solve for x
    x = 8,290,160,958.18/130,965.12
  6. Step 6: Final answer
    x = 63,300.53

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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.