Home / 97,775.48-146,639.72-45,134.40

Finding the Fourth Proportional to 97,775.48, 146,639.72 and 45,134.40

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Solution

The fourth proportional to 97,775.48, 146,639.72 and 45,134.40 is: 67,690.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,775.48 : 146,639.72 = 45,134.40 : x
  2. Step 2: Convert to fraction form
    97,775.48/146,639.72 = 45,134.40/x
  3. Step 3: Cross multiply
    97,775.48x = 146,639.72 × 45,134.40
  4. Step 4: Simplify right side
    97,775.48x = 6,618,495,778.37
  5. Step 5: Solve for x
    x = 6,618,495,778.37/97,775.48
  6. Step 6: Final answer
    x = 67,690.75

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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.