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Finding the Fourth Proportional to 97,019.70, 145,529.55 and 73,400.10

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Solution

The fourth proportional to 97,019.70, 145,529.55 and 73,400.10 is: 110,100.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,019.70 : 145,529.55 = 73,400.10 : x
  2. Step 2: Convert to fraction form
    97,019.70/145,529.55 = 73,400.10/x
  3. Step 3: Cross multiply
    97,019.70x = 145,529.55 × 73,400.10
  4. Step 4: Simplify right side
    97,019.70x = 10,681,883,522.96
  5. Step 5: Solve for x
    x = 10,681,883,522.96/97,019.70
  6. Step 6: Final answer
    x = 110,100.15

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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.