Home / 161,639.55-242,459.16-43,307.66

Finding the Fourth Proportional to 161,639.55, 242,459.16 and 43,307.66

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Solution

The fourth proportional to 161,639.55, 242,459.16 and 43,307.66 is: 64,961.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,639.55 : 242,459.16 = 43,307.66 : x
  2. Step 2: Convert to fraction form
    161,639.55/242,459.16 = 43,307.66/x
  3. Step 3: Cross multiply
    161,639.55x = 242,459.16 × 43,307.66
  4. Step 4: Simplify right side
    161,639.55x = 10,500,337,436.33
  5. Step 5: Solve for x
    x = 10,500,337,436.33/161,639.55
  6. Step 6: Final answer
    x = 64,961.44

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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.