Home / 142,257.60-196,321.19-81,828.23

Finding the Fourth Proportional to 142,257.60, 196,321.19 and 81,828.23

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Solution

The fourth proportional to 142,257.60, 196,321.19 and 81,828.23 is: 112,926.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,257.60 : 196,321.19 = 81,828.23 : x
  2. Step 2: Convert to fraction form
    142,257.60/196,321.19 = 81,828.23/x
  3. Step 3: Cross multiply
    142,257.60x = 196,321.19 × 81,828.23
  4. Step 4: Simplify right side
    142,257.60x = 16,064,614,098.45
  5. Step 5: Solve for x
    x = 16,064,614,098.45/142,257.60
  6. Step 6: Final answer
    x = 112,926.23

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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.