Home / 97,147.16-134,069.94-54,129.50

Finding the Fourth Proportional to 97,147.16, 134,069.94 and 54,129.50

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Solution

The fourth proportional to 97,147.16, 134,069.94 and 54,129.50 is: 74,702.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,147.16 : 134,069.94 = 54,129.50 : x
  2. Step 2: Convert to fraction form
    97,147.16/134,069.94 = 54,129.50/x
  3. Step 3: Cross multiply
    97,147.16x = 134,069.94 × 54,129.50
  4. Step 4: Simplify right side
    97,147.16x = 7,257,138,817.23
  5. Step 5: Solve for x
    x = 7,257,138,817.23/97,147.16
  6. Step 6: Final answer
    x = 74,702.53

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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.