Home / 221,119.47-305,106.62-130,468.59

Finding the Fourth Proportional to 221,119.47, 305,106.62 and 130,468.59

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Solution

The fourth proportional to 221,119.47, 305,106.62 and 130,468.59 is: 180,024.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,119.47 : 305,106.62 = 130,468.59 : x
  2. Step 2: Convert to fraction form
    221,119.47/305,106.62 = 130,468.59/x
  3. Step 3: Cross multiply
    221,119.47x = 305,106.62 × 130,468.59
  4. Step 4: Simplify right side
    221,119.47x = 39,806,829,858.72
  5. Step 5: Solve for x
    x = 39,806,829,858.72/221,119.47
  6. Step 6: Final answer
    x = 180,024.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.