Home / 122,004.30-183,006.45-86,574.90

Finding the Fourth Proportional to 122,004.30, 183,006.45 and 86,574.90

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Solution

The fourth proportional to 122,004.30, 183,006.45 and 86,574.90 is: 129,862.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,004.30 : 183,006.45 = 86,574.90 : x
  2. Step 2: Convert to fraction form
    122,004.30/183,006.45 = 86,574.90/x
  3. Step 3: Cross multiply
    122,004.30x = 183,006.45 × 86,574.90
  4. Step 4: Simplify right side
    122,004.30x = 15,843,765,108.11
  5. Step 5: Solve for x
    x = 15,843,765,108.11/122,004.30
  6. Step 6: Final answer
    x = 129,862.35

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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.