Home / 97,111.53-134,126.07-64,789.95

Finding the Fourth Proportional to 97,111.53, 134,126.07 and 64,789.95

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Solution

The fourth proportional to 97,111.53, 134,126.07 and 64,789.95 is: 89,484.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,111.53 : 134,126.07 = 64,789.95 : x
  2. Step 2: Convert to fraction form
    97,111.53/134,126.07 = 64,789.95/x
  3. Step 3: Cross multiply
    97,111.53x = 134,126.07 × 64,789.95
  4. Step 4: Simplify right side
    97,111.53x = 8,690,021,369.00
  5. Step 5: Solve for x
    x = 8,690,021,369.00/97,111.53
  6. Step 6: Final answer
    x = 89,484.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.