Home / 104,987.71-144,885.78-64,728.07

Finding the Fourth Proportional to 104,987.71, 144,885.78 and 64,728.07

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Solution

The fourth proportional to 104,987.71, 144,885.78 and 64,728.07 is: 89,326.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,987.71 : 144,885.78 = 64,728.07 : x
  2. Step 2: Convert to fraction form
    104,987.71/144,885.78 = 64,728.07/x
  3. Step 3: Cross multiply
    104,987.71x = 144,885.78 × 64,728.07
  4. Step 4: Simplify right side
    104,987.71x = 9,378,176,909.84
  5. Step 5: Solve for x
    x = 9,378,176,909.84/104,987.71
  6. Step 6: Final answer
    x = 89,326.43

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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.