Home / 122,425.70-183,638.55-72,659.30

Finding the Fourth Proportional to 122,425.70, 183,638.55 and 72,659.30

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Solution

The fourth proportional to 122,425.70, 183,638.55 and 72,659.30 is: 108,988.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,425.70 : 183,638.55 = 72,659.30 : x
  2. Step 2: Convert to fraction form
    122,425.70/183,638.55 = 72,659.30/x
  3. Step 3: Cross multiply
    122,425.70x = 183,638.55 × 72,659.30
  4. Step 4: Simplify right side
    122,425.70x = 13,343,048,496.02
  5. Step 5: Solve for x
    x = 13,343,048,496.02/122,425.70
  6. Step 6: Final answer
    x = 108,988.95

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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.