Home / 145,736.16-218,419.92-70,873.44

Finding the Fourth Proportional to 145,736.16, 218,419.92 and 70,873.44

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Solution

The fourth proportional to 145,736.16, 218,419.92 and 70,873.44 is: 106,220.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,736.16 : 218,419.92 = 70,873.44 : x
  2. Step 2: Convert to fraction form
    145,736.16/218,419.92 = 70,873.44/x
  3. Step 3: Cross multiply
    145,736.16x = 218,419.92 × 70,873.44
  4. Step 4: Simplify right side
    145,736.16x = 15,480,171,094.92
  5. Step 5: Solve for x
    x = 15,480,171,094.92/145,736.16
  6. Step 6: Final answer
    x = 106,220.52

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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.