Home / 221,528.21-305,705.02-126,032.86

Finding the Fourth Proportional to 221,528.21, 305,705.02 and 126,032.86

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Solution

The fourth proportional to 221,528.21, 305,705.02 and 126,032.86 is: 173,923.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,528.21 : 305,705.02 = 126,032.86 : x
  2. Step 2: Convert to fraction form
    221,528.21/305,705.02 = 126,032.86/x
  3. Step 3: Cross multiply
    221,528.21x = 305,705.02 × 126,032.86
  4. Step 4: Simplify right side
    221,528.21x = 38,528,875,828.27
  5. Step 5: Solve for x
    x = 38,528,875,828.27/221,528.21
  6. Step 6: Final answer
    x = 173,923.11

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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.