Home / 142,714.40-196,759.14-122,785.34

Finding the Fourth Proportional to 142,714.40, 196,759.14 and 122,785.34

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Solution

The fourth proportional to 142,714.40, 196,759.14 and 122,785.34 is: 169,283.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,714.40 : 196,759.14 = 122,785.34 : x
  2. Step 2: Convert to fraction form
    142,714.40/196,759.14 = 122,785.34/x
  3. Step 3: Cross multiply
    142,714.40x = 196,759.14 × 122,785.34
  4. Step 4: Simplify right side
    142,714.40x = 24,159,137,903.01
  5. Step 5: Solve for x
    x = 24,159,137,903.01/142,714.40
  6. Step 6: Final answer
    x = 169,283.11

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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.