Home / 145,511.20-217,878-83,095.84

Finding the Fourth Proportional to 145,511.20, 217,878 and 83,095.84

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Solution

The fourth proportional to 145,511.20, 217,878 and 83,095.84 is: 124,421.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,511.20 : 217,878 = 83,095.84 : x
  2. Step 2: Convert to fraction form
    145,511.20/217,878 = 83,095.84/x
  3. Step 3: Cross multiply
    145,511.20x = 217,878 × 83,095.84
  4. Step 4: Simplify right side
    145,511.20x = 18,104,755,427.52
  5. Step 5: Solve for x
    x = 18,104,755,427.52/145,511.20
  6. Step 6: Final answer
    x = 124,421.73

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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.