Home / 161,985.86-243,060.78-109,284.63

Finding the Fourth Proportional to 161,985.86, 243,060.78 and 109,284.63

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Solution

The fourth proportional to 161,985.86, 243,060.78 and 109,284.63 is: 163,982.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,985.86 : 243,060.78 = 109,284.63 : x
  2. Step 2: Convert to fraction form
    161,985.86/243,060.78 = 109,284.63/x
  3. Step 3: Cross multiply
    161,985.86x = 243,060.78 × 109,284.63
  4. Step 4: Simplify right side
    161,985.86x = 26,562,806,908.15
  5. Step 5: Solve for x
    x = 26,562,806,908.15/161,985.86
  6. Step 6: Final answer
    x = 163,982.26

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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.