Home / 147,811.60-221,856.60-77,741.20

Finding the Fourth Proportional to 147,811.60, 221,856.60 and 77,741.20

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Solution

The fourth proportional to 147,811.60, 221,856.60 and 77,741.20 is: 116,685.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,811.60 : 221,856.60 = 77,741.20 : x
  2. Step 2: Convert to fraction form
    147,811.60/221,856.60 = 77,741.20/x
  3. Step 3: Cross multiply
    147,811.60x = 221,856.60 × 77,741.20
  4. Step 4: Simplify right side
    147,811.60x = 17,247,398,311.92
  5. Step 5: Solve for x
    x = 17,247,398,311.92/147,811.60
  6. Step 6: Final answer
    x = 116,685.01

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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.