Home / 161,985.59-243,016.25-55,370.36

Finding the Fourth Proportional to 161,985.59, 243,016.25 and 55,370.36

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Solution

The fourth proportional to 161,985.59, 243,016.25 and 55,370.36 is: 83,068.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,985.59 : 243,016.25 = 55,370.36 : x
  2. Step 2: Convert to fraction form
    161,985.59/243,016.25 = 55,370.36/x
  3. Step 3: Cross multiply
    161,985.59x = 243,016.25 × 55,370.36
  4. Step 4: Simplify right side
    161,985.59x = 13,455,897,248.35
  5. Step 5: Solve for x
    x = 13,455,897,248.35/161,985.59
  6. Step 6: Final answer
    x = 83,068.48

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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.