Home / 147,934.61-221,836.29-91,772.45

Finding the Fourth Proportional to 147,934.61, 221,836.29 and 91,772.45

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Solution

The fourth proportional to 147,934.61, 221,836.29 and 91,772.45 is: 137,617.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,934.61 : 221,836.29 = 91,772.45 : x
  2. Step 2: Convert to fraction form
    147,934.61/221,836.29 = 91,772.45/x
  3. Step 3: Cross multiply
    147,934.61x = 221,836.29 × 91,772.45
  4. Step 4: Simplify right side
    147,934.61x = 20,358,459,832.21
  5. Step 5: Solve for x
    x = 20,358,459,832.21/147,934.61
  6. Step 6: Final answer
    x = 137,617.96

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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.