Home / 97,428.30-146,142.45-91,985.10

Finding the Fourth Proportional to 97,428.30, 146,142.45 and 91,985.10

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Solution

The fourth proportional to 97,428.30, 146,142.45 and 91,985.10 is: 137,977.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,428.30 : 146,142.45 = 91,985.10 : x
  2. Step 2: Convert to fraction form
    97,428.30/146,142.45 = 91,985.10/x
  3. Step 3: Cross multiply
    97,428.30x = 146,142.45 × 91,985.10
  4. Step 4: Simplify right side
    97,428.30x = 13,442,927,877.50
  5. Step 5: Solve for x
    x = 13,442,927,877.50/97,428.30
  6. Step 6: Final answer
    x = 137,977.65

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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.