Home / 131,551.95-197,377.64-78,998.07

Finding the Fourth Proportional to 131,551.95, 197,377.64 and 78,998.07

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Solution

The fourth proportional to 131,551.95, 197,377.64 and 78,998.07 is: 118,526.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,551.95 : 197,377.64 = 78,998.07 : x
  2. Step 2: Convert to fraction form
    131,551.95/197,377.64 = 78,998.07/x
  3. Step 3: Cross multiply
    131,551.95x = 197,377.64 × 78,998.07
  4. Step 4: Simplify right side
    131,551.95x = 15,592,452,226.16
  5. Step 5: Solve for x
    x = 15,592,452,226.16/131,551.95
  6. Step 6: Final answer
    x = 118,526.96

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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.