Home / 131,643.45-197,485.65-42,876.30

Finding the Fourth Proportional to 131,643.45, 197,485.65 and 42,876.30

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Solution

The fourth proportional to 131,643.45, 197,485.65 and 42,876.30 is: 64,321.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,643.45 : 197,485.65 = 42,876.30 : x
  2. Step 2: Convert to fraction form
    131,643.45/197,485.65 = 42,876.30/x
  3. Step 3: Cross multiply
    131,643.45x = 197,485.65 × 42,876.30
  4. Step 4: Simplify right side
    131,643.45x = 8,467,453,975.10
  5. Step 5: Solve for x
    x = 8,467,453,975.10/131,643.45
  6. Step 6: Final answer
    x = 64,321.12

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1.5x scale

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.