Home / 147,320.20-221,066.70-53,835.40

Finding the Fourth Proportional to 147,320.20, 221,066.70 and 53,835.40

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Solution

The fourth proportional to 147,320.20, 221,066.70 and 53,835.40 is: 80,784.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,320.20 : 221,066.70 = 53,835.40 : x
  2. Step 2: Convert to fraction form
    147,320.20/221,066.70 = 53,835.40/x
  3. Step 3: Cross multiply
    147,320.20x = 221,066.70 × 53,835.40
  4. Step 4: Simplify right side
    147,320.20x = 11,901,214,221.18
  5. Step 5: Solve for x
    x = 11,901,214,221.18/147,320.20
  6. Step 6: Final answer
    x = 80,784.67

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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.