Home / 160,064.20-240,246.96-81,235

Finding the Fourth Proportional to 160,064.20, 240,246.96 and 81,235

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Solution

The fourth proportional to 160,064.20, 240,246.96 and 81,235 is: 121,928.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,064.20 : 240,246.96 = 81,235 : x
  2. Step 2: Convert to fraction form
    160,064.20/240,246.96 = 81,235/x
  3. Step 3: Cross multiply
    160,064.20x = 240,246.96 × 81,235
  4. Step 4: Simplify right side
    160,064.20x = 19,516,461,795.60
  5. Step 5: Solve for x
    x = 19,516,461,795.60/160,064.20
  6. Step 6: Final answer
    x = 121,928.96

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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.