Home / 161,823.66-223,225.20-101,289.21

Finding the Fourth Proportional to 161,823.66, 223,225.20 and 101,289.21

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Solution

The fourth proportional to 161,823.66, 223,225.20 and 101,289.21 is: 139,721.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,823.66 : 223,225.20 = 101,289.21 : x
  2. Step 2: Convert to fraction form
    161,823.66/223,225.20 = 101,289.21/x
  3. Step 3: Cross multiply
    161,823.66x = 223,225.20 × 101,289.21
  4. Step 4: Simplify right side
    161,823.66x = 22,610,304,160.09
  5. Step 5: Solve for x
    x = 22,610,304,160.09/161,823.66
  6. Step 6: Final answer
    x = 139,721.87

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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.