Home / 221,953.77-306,222.68-125,145.46

Finding the Fourth Proportional to 221,953.77, 306,222.68 and 125,145.46

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Solution

The fourth proportional to 221,953.77, 306,222.68 and 125,145.46 is: 172,659.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,953.77 : 306,222.68 = 125,145.46 : x
  2. Step 2: Convert to fraction form
    221,953.77/306,222.68 = 125,145.46/x
  3. Step 3: Cross multiply
    221,953.77x = 306,222.68 × 125,145.46
  4. Step 4: Simplify right side
    221,953.77x = 38,322,376,420.23
  5. Step 5: Solve for x
    x = 38,322,376,420.23/221,953.77
  6. Step 6: Final answer
    x = 172,659.27

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1.5x scale

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.