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Finding the Fourth Proportional to 97,667.40, 146,501.10 and 71,423.40

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Solution

The fourth proportional to 97,667.40, 146,501.10 and 71,423.40 is: 107,135.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,667.40 : 146,501.10 = 71,423.40 : x
  2. Step 2: Convert to fraction form
    97,667.40/146,501.10 = 71,423.40/x
  3. Step 3: Cross multiply
    97,667.40x = 146,501.10 × 71,423.40
  4. Step 4: Simplify right side
    97,667.40x = 10,463,606,665.74
  5. Step 5: Solve for x
    x = 10,463,606,665.74/97,667.40
  6. Step 6: Final answer
    x = 107,135.10

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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.