Home / 142,799.56-197,063.22-86,199.88

Finding the Fourth Proportional to 142,799.56, 197,063.22 and 86,199.88

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Solution

The fourth proportional to 142,799.56, 197,063.22 and 86,199.88 is: 118,955.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,799.56 : 197,063.22 = 86,199.88 : x
  2. Step 2: Convert to fraction form
    142,799.56/197,063.22 = 86,199.88/x
  3. Step 3: Cross multiply
    142,799.56x = 197,063.22 × 86,199.88
  4. Step 4: Simplify right side
    142,799.56x = 16,986,825,916.41
  5. Step 5: Solve for x
    x = 16,986,825,916.41/142,799.56
  6. Step 6: Final answer
    x = 118,955.73

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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.