Home / 131,431.90-197,104.65-48,315.10

Finding the Fourth Proportional to 131,431.90, 197,104.65 and 48,315.10

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Solution

The fourth proportional to 131,431.90, 197,104.65 and 48,315.10 is: 72,456.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,431.90 : 197,104.65 = 48,315.10 : x
  2. Step 2: Convert to fraction form
    131,431.90/197,104.65 = 48,315.10/x
  3. Step 3: Cross multiply
    131,431.90x = 197,104.65 × 48,315.10
  4. Step 4: Simplify right side
    131,431.90x = 9,523,130,875.22
  5. Step 5: Solve for x
    x = 9,523,130,875.22/131,431.90
  6. Step 6: Final answer
    x = 72,456.77

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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.