Home / 181,621.80-272,303.10-81,700.20

Finding the Fourth Proportional to 181,621.80, 272,303.10 and 81,700.20

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Solution

The fourth proportional to 181,621.80, 272,303.10 and 81,700.20 is: 122,492.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,621.80 : 272,303.10 = 81,700.20 : x
  2. Step 2: Convert to fraction form
    181,621.80/272,303.10 = 81,700.20/x
  3. Step 3: Cross multiply
    181,621.80x = 272,303.10 × 81,700.20
  4. Step 4: Simplify right side
    181,621.80x = 22,247,217,730.62
  5. Step 5: Solve for x
    x = 22,247,217,730.62/181,621.80
  6. Step 6: Final answer
    x = 122,492.00

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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.