Home / 131,758.96-197,657.40-42,990.48

Finding the Fourth Proportional to 131,758.96, 197,657.40 and 42,990.48

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Solution

The fourth proportional to 131,758.96, 197,657.40 and 42,990.48 is: 64,491.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,758.96 : 197,657.40 = 42,990.48 : x
  2. Step 2: Convert to fraction form
    131,758.96/197,657.40 = 42,990.48/x
  3. Step 3: Cross multiply
    131,758.96x = 197,657.40 × 42,990.48
  4. Step 4: Simplify right side
    131,758.96x = 8,497,386,501.55
  5. Step 5: Solve for x
    x = 8,497,386,501.55/131,758.96
  6. Step 6: Final answer
    x = 64,491.91

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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.