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Finding the Fourth Proportional to 122,357.40, 183,536.10 and 69,869.40

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Solution

The fourth proportional to 122,357.40, 183,536.10 and 69,869.40 is: 104,804.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,357.40 : 183,536.10 = 69,869.40 : x
  2. Step 2: Convert to fraction form
    122,357.40/183,536.10 = 69,869.40/x
  3. Step 3: Cross multiply
    122,357.40x = 183,536.10 × 69,869.40
  4. Step 4: Simplify right side
    122,357.40x = 12,823,557,185.34
  5. Step 5: Solve for x
    x = 12,823,557,185.34/122,357.40
  6. Step 6: Final answer
    x = 104,804.10

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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.