Home / 131,501.90-197,252.85-78,884.30

Finding the Fourth Proportional to 131,501.90, 197,252.85 and 78,884.30

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Solution

The fourth proportional to 131,501.90, 197,252.85 and 78,884.30 is: 118,326.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,501.90 : 197,252.85 = 78,884.30 : x
  2. Step 2: Convert to fraction form
    131,501.90/197,252.85 = 78,884.30/x
  3. Step 3: Cross multiply
    131,501.90x = 197,252.85 × 78,884.30
  4. Step 4: Simplify right side
    131,501.90x = 15,560,152,995.26
  5. Step 5: Solve for x
    x = 15,560,152,995.26/131,501.90
  6. Step 6: Final answer
    x = 118,326.45

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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.