Home / 147,819.60-221,868.60-77,749.20

Finding the Fourth Proportional to 147,819.60, 221,868.60 and 77,749.20

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Solution

The fourth proportional to 147,819.60, 221,868.60 and 77,749.20 is: 116,697.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,819.60 : 221,868.60 = 77,749.20 : x
  2. Step 2: Convert to fraction form
    147,819.60/221,868.60 = 77,749.20/x
  3. Step 3: Cross multiply
    147,819.60x = 221,868.60 × 77,749.20
  4. Step 4: Simplify right side
    147,819.60x = 17,250,106,155.12
  5. Step 5: Solve for x
    x = 17,250,106,155.12/147,819.60
  6. Step 6: Final answer
    x = 116,697.02

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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.