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Finding the Fourth Proportional to 115,027.60, 158,697.01 and 66,603.10

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Solution

The fourth proportional to 115,027.60, 158,697.01 and 66,603.10 is: 91,888.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,027.60 : 158,697.01 = 66,603.10 : x
  2. Step 2: Convert to fraction form
    115,027.60/158,697.01 = 66,603.10/x
  3. Step 3: Cross multiply
    115,027.60x = 158,697.01 × 66,603.10
  4. Step 4: Simplify right side
    115,027.60x = 10,569,712,408.77
  5. Step 5: Solve for x
    x = 10,569,712,408.77/115,027.60
  6. Step 6: Final answer
    x = 91,888.49

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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.