Home / 161,447.64-242,169.02-72,638.44

Finding the Fourth Proportional to 161,447.64, 242,169.02 and 72,638.44

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Solution

The fourth proportional to 161,447.64, 242,169.02 and 72,638.44 is: 108,956.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,447.64 : 242,169.02 = 72,638.44 : x
  2. Step 2: Convert to fraction form
    161,447.64/242,169.02 = 72,638.44/x
  3. Step 3: Cross multiply
    161,447.64x = 242,169.02 × 72,638.44
  4. Step 4: Simplify right side
    161,447.64x = 17,590,779,829.13
  5. Step 5: Solve for x
    x = 17,590,779,829.13/161,447.64
  6. Step 6: Final answer
    x = 108,956.56

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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.