Home / 127,742.22-191,443.56-67,758.36

Finding the Fourth Proportional to 127,742.22, 191,443.56 and 67,758.36

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Solution

The fourth proportional to 127,742.22, 191,443.56 and 67,758.36 is: 101,547.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,742.22 : 191,443.56 = 67,758.36 : x
  2. Step 2: Convert to fraction form
    127,742.22/191,443.56 = 67,758.36/x
  3. Step 3: Cross multiply
    127,742.22x = 191,443.56 × 67,758.36
  4. Step 4: Simplify right side
    127,742.22x = 12,971,901,658.16
  5. Step 5: Solve for x
    x = 12,971,901,658.16/127,742.22
  6. Step 6: Final answer
    x = 101,547.49

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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.