Home / 145,162.02-200,320.62-81,499.80

Finding the Fourth Proportional to 145,162.02, 200,320.62 and 81,499.80

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Solution

The fourth proportional to 145,162.02, 200,320.62 and 81,499.80 is: 112,468.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,162.02 : 200,320.62 = 81,499.80 : x
  2. Step 2: Convert to fraction form
    145,162.02/200,320.62 = 81,499.80/x
  3. Step 3: Cross multiply
    145,162.02x = 200,320.62 × 81,499.80
  4. Step 4: Simplify right side
    145,162.02x = 16,326,090,465.88
  5. Step 5: Solve for x
    x = 16,326,090,465.88/145,162.02
  6. Step 6: Final answer
    x = 112,468.06

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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.