Home / 145,416.03-200,670.20-81,757.92

Finding the Fourth Proportional to 145,416.03, 200,670.20 and 81,757.92

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Solution

The fourth proportional to 145,416.03, 200,670.20 and 81,757.92 is: 112,823.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,416.03 : 200,670.20 = 81,757.92 : x
  2. Step 2: Convert to fraction form
    145,416.03/200,670.20 = 81,757.92/x
  3. Step 3: Cross multiply
    145,416.03x = 200,670.20 × 81,757.92
  4. Step 4: Simplify right side
    145,416.03x = 16,406,377,749.19
  5. Step 5: Solve for x
    x = 16,406,377,749.19/145,416.03
  6. Step 6: Final answer
    x = 112,823.72

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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.