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Finding the Fourth Proportional to 145,560.70, 200,966.03 and 99,697.29

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Solution

The fourth proportional to 145,560.70, 200,966.03 and 99,697.29 is: 137,645.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,560.70 : 200,966.03 = 99,697.29 : x
  2. Step 2: Convert to fraction form
    145,560.70/200,966.03 = 99,697.29/x
  3. Step 3: Cross multiply
    145,560.70x = 200,966.03 × 99,697.29
  4. Step 4: Simplify right side
    145,560.70x = 20,035,768,573.06
  5. Step 5: Solve for x
    x = 20,035,768,573.06/145,560.70
  6. Step 6: Final answer
    x = 137,645.45

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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.