Home / 97,478.33-145,884.83-81,701.18

Finding the Fourth Proportional to 97,478.33, 145,884.83 and 81,701.18

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Solution

The fourth proportional to 97,478.33, 145,884.83 and 81,701.18 is: 122,272.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,478.33 : 145,884.83 = 81,701.18 : x
  2. Step 2: Convert to fraction form
    97,478.33/145,884.83 = 81,701.18/x
  3. Step 3: Cross multiply
    97,478.33x = 145,884.83 × 81,701.18
  4. Step 4: Simplify right side
    97,478.33x = 11,918,961,617.17
  5. Step 5: Solve for x
    x = 11,918,961,617.17/97,478.33
  6. Step 6: Final answer
    x = 122,272.93

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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.