Home / 145,789.76-201,186.06-82,123.76

Finding the Fourth Proportional to 145,789.76, 201,186.06 and 82,123.76

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Solution

The fourth proportional to 145,789.76, 201,186.06 and 82,123.76 is: 113,328.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,789.76 : 201,186.06 = 82,123.76 : x
  2. Step 2: Convert to fraction form
    145,789.76/201,186.06 = 82,123.76/x
  3. Step 3: Cross multiply
    145,789.76x = 201,186.06 × 82,123.76
  4. Step 4: Simplify right side
    145,789.76x = 16,522,155,706.79
  5. Step 5: Solve for x
    x = 16,522,155,706.79/145,789.76
  6. Step 6: Final answer
    x = 113,328.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.