Home / 97,621.60-146,140.80-58,158.40

Finding the Fourth Proportional to 97,621.60, 146,140.80 and 58,158.40

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Solution

The fourth proportional to 97,621.60, 146,140.80 and 58,158.40 is: 87,063.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,621.60 : 146,140.80 = 58,158.40 : x
  2. Step 2: Convert to fraction form
    97,621.60/146,140.80 = 58,158.40/x
  3. Step 3: Cross multiply
    97,621.60x = 146,140.80 × 58,158.40
  4. Step 4: Simplify right side
    97,621.60x = 8,499,315,102.72
  5. Step 5: Solve for x
    x = 8,499,315,102.72/97,621.60
  6. Step 6: Final answer
    x = 87,063.88

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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.