Home / 122,119.36-183,199.80-42,135.64

Finding the Fourth Proportional to 122,119.36, 183,199.80 and 42,135.64

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Solution

The fourth proportional to 122,119.36, 183,199.80 and 42,135.64 is: 63,210.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,119.36 : 183,199.80 = 42,135.64 : x
  2. Step 2: Convert to fraction form
    122,119.36/183,199.80 = 42,135.64/x
  3. Step 3: Cross multiply
    122,119.36x = 183,199.80 × 42,135.64
  4. Step 4: Simplify right side
    122,119.36x = 7,719,240,820.87
  5. Step 5: Solve for x
    x = 7,719,240,820.87/122,119.36
  6. Step 6: Final answer
    x = 63,210.62

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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.