Home / 122,069.40-183,104.10-74,830.20

Finding the Fourth Proportional to 122,069.40, 183,104.10 and 74,830.20

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Solution

The fourth proportional to 122,069.40, 183,104.10 and 74,830.20 is: 112,245.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,069.40 : 183,104.10 = 74,830.20 : x
  2. Step 2: Convert to fraction form
    122,069.40/183,104.10 = 74,830.20/x
  3. Step 3: Cross multiply
    122,069.40x = 183,104.10 × 74,830.20
  4. Step 4: Simplify right side
    122,069.40x = 13,701,716,423.82
  5. Step 5: Solve for x
    x = 13,701,716,423.82/122,069.40
  6. Step 6: Final answer
    x = 112,245.30

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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.