Home / 131,421.87-197,143.34-52,492.77

Finding the Fourth Proportional to 131,421.87, 197,143.34 and 52,492.77

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Solution

The fourth proportional to 131,421.87, 197,143.34 and 52,492.77 is: 78,743.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,421.87 : 197,143.34 = 52,492.77 : x
  2. Step 2: Convert to fraction form
    131,421.87/197,143.34 = 52,492.77/x
  3. Step 3: Cross multiply
    131,421.87x = 197,143.34 × 52,492.77
  4. Step 4: Simplify right side
    131,421.87x = 10,348,599,741.19
  5. Step 5: Solve for x
    x = 10,348,599,741.19/131,421.87
  6. Step 6: Final answer
    x = 78,743.36

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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.