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Finding the Fourth Proportional to 97,166.85, 145,572.72 and 70,446.60

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Solution

The fourth proportional to 97,166.85, 145,572.72 and 70,446.60 is: 105,541.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,166.85 : 145,572.72 = 70,446.60 : x
  2. Step 2: Convert to fraction form
    97,166.85/145,572.72 = 70,446.60/x
  3. Step 3: Cross multiply
    97,166.85x = 145,572.72 × 70,446.60
  4. Step 4: Simplify right side
    97,166.85x = 10,255,103,176.75
  5. Step 5: Solve for x
    x = 10,255,103,176.75/97,166.85
  6. Step 6: Final answer
    x = 105,541.17

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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.