Home / 131,451.90-197,177.85-42,708.30

Finding the Fourth Proportional to 131,451.90, 197,177.85 and 42,708.30

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Solution

The fourth proportional to 131,451.90, 197,177.85 and 42,708.30 is: 64,062.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,451.90 : 197,177.85 = 42,708.30 : x
  2. Step 2: Convert to fraction form
    131,451.90/197,177.85 = 42,708.30/x
  3. Step 3: Cross multiply
    131,451.90x = 197,177.85 × 42,708.30
  4. Step 4: Simplify right side
    131,451.90x = 8,421,130,771.16
  5. Step 5: Solve for x
    x = 8,421,130,771.16/131,451.90
  6. Step 6: Final answer
    x = 64,062.45

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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.