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Finding the Fourth Proportional to 181,685.52, 250,730.10 and 101,121.30

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Solution

The fourth proportional to 181,685.52, 250,730.10 and 101,121.30 is: 139,549.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,685.52 : 250,730.10 = 101,121.30 : x
  2. Step 2: Convert to fraction form
    181,685.52/250,730.10 = 101,121.30/x
  3. Step 3: Cross multiply
    181,685.52x = 250,730.10 × 101,121.30
  4. Step 4: Simplify right side
    181,685.52x = 25,354,153,661.13
  5. Step 5: Solve for x
    x = 25,354,153,661.13/181,685.52
  6. Step 6: Final answer
    x = 139,549.67

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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.