Home / 122,421.20-183,567.20-38,165.66

Finding the Fourth Proportional to 122,421.20, 183,567.20 and 38,165.66

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Solution

The fourth proportional to 122,421.20, 183,567.20 and 38,165.66 is: 57,228.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,421.20 : 183,567.20 = 38,165.66 : x
  2. Step 2: Convert to fraction form
    122,421.20/183,567.20 = 38,165.66/x
  3. Step 3: Cross multiply
    122,421.20x = 183,567.20 × 38,165.66
  4. Step 4: Simplify right side
    122,421.20x = 7,005,963,896.68
  5. Step 5: Solve for x
    x = 7,005,963,896.68/122,421.20
  6. Step 6: Final answer
    x = 57,228.35

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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.