Home / 219,827.02-329,518.92-86,655.70

Finding the Fourth Proportional to 219,827.02, 329,518.92 and 86,655.70

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Solution

The fourth proportional to 219,827.02, 329,518.92 and 86,655.70 is: 129,896.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,827.02 : 329,518.92 = 86,655.70 : x
  2. Step 2: Convert to fraction form
    219,827.02/329,518.92 = 86,655.70/x
  3. Step 3: Cross multiply
    219,827.02x = 329,518.92 × 86,655.70
  4. Step 4: Simplify right side
    219,827.02x = 28,554,692,675.84
  5. Step 5: Solve for x
    x = 28,554,692,675.84/219,827.02
  6. Step 6: Final answer
    x = 129,896.19

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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.