Home / 122,658.90-183,988.20-38,425.62

Finding the Fourth Proportional to 122,658.90, 183,988.20 and 38,425.62

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Solution

The fourth proportional to 122,658.90, 183,988.20 and 38,425.62 is: 57,638.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,658.90 : 183,988.20 = 38,425.62 : x
  2. Step 2: Convert to fraction form
    122,658.90/183,988.20 = 38,425.62/x
  3. Step 3: Cross multiply
    122,658.90x = 183,988.20 × 38,425.62
  4. Step 4: Simplify right side
    122,658.90x = 7,069,860,513.59
  5. Step 5: Solve for x
    x = 7,069,860,513.59/122,658.90
  6. Step 6: Final answer
    x = 57,638.38

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1.5x scale

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.