Home / 126,929.61-190,394.42-64,643.85

Finding the Fourth Proportional to 126,929.61, 190,394.42 and 64,643.85

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Solution

The fourth proportional to 126,929.61, 190,394.42 and 64,643.85 is: 96,965.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,929.61 : 190,394.42 = 64,643.85 : x
  2. Step 2: Convert to fraction form
    126,929.61/190,394.42 = 64,643.85/x
  3. Step 3: Cross multiply
    126,929.61x = 190,394.42 × 64,643.85
  4. Step 4: Simplify right side
    126,929.61x = 12,307,828,004.10
  5. Step 5: Solve for x
    x = 12,307,828,004.10/126,929.61
  6. Step 6: Final answer
    x = 96,965.78

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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.