Home / 105,538.40-158,108.97-52,167.91

Finding the Fourth Proportional to 105,538.40, 158,108.97 and 52,167.91

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Solution

The fourth proportional to 105,538.40, 158,108.97 and 52,167.91 is: 78,153.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,538.40 : 158,108.97 = 52,167.91 : x
  2. Step 2: Convert to fraction form
    105,538.40/158,108.97 = 52,167.91/x
  3. Step 3: Cross multiply
    105,538.40x = 158,108.97 × 52,167.91
  4. Step 4: Simplify right side
    105,538.40x = 8,248,213,914.21
  5. Step 5: Solve for x
    x = 8,248,213,914.21/105,538.40
  6. Step 6: Final answer
    x = 78,153.67

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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.