Home / 221,459.47-305,624.00-124,696.60

Finding the Fourth Proportional to 221,459.47, 305,624.00 and 124,696.60

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Solution

The fourth proportional to 221,459.47, 305,624.00 and 124,696.60 is: 172,086.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,459.47 : 305,624.00 = 124,696.60 : x
  2. Step 2: Convert to fraction form
    221,459.47/305,624.00 = 124,696.60/x
  3. Step 3: Cross multiply
    221,459.47x = 305,624.00 × 124,696.60
  4. Step 4: Simplify right side
    221,459.47x = 38,110,273,226.08
  5. Step 5: Solve for x
    x = 38,110,273,226.08/221,459.47
  6. Step 6: Final answer
    x = 172,086.90

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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.