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Finding the Fourth Proportional to 97,172.72, 145,759.08 and 55,590.56

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Solution

The fourth proportional to 97,172.72, 145,759.08 and 55,590.56 is: 83,385.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,172.72 : 145,759.08 = 55,590.56 : x
  2. Step 2: Convert to fraction form
    97,172.72/145,759.08 = 55,590.56/x
  3. Step 3: Cross multiply
    97,172.72x = 145,759.08 × 55,590.56
  4. Step 4: Simplify right side
    97,172.72x = 8,102,828,882.28
  5. Step 5: Solve for x
    x = 8,102,828,882.28/97,172.72
  6. Step 6: Final answer
    x = 83,385.84

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1.5x scale

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.