Home / 137,725.74-190,061.52-77,315.84

Finding the Fourth Proportional to 137,725.74, 190,061.52 and 77,315.84

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Solution

The fourth proportional to 137,725.74, 190,061.52 and 77,315.84 is: 106,695.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,725.74 : 190,061.52 = 77,315.84 : x
  2. Step 2: Convert to fraction form
    137,725.74/190,061.52 = 77,315.84/x
  3. Step 3: Cross multiply
    137,725.74x = 190,061.52 × 77,315.84
  4. Step 4: Simplify right side
    137,725.74x = 14,694,766,437.23
  5. Step 5: Solve for x
    x = 14,694,766,437.23/137,725.74
  6. Step 6: Final answer
    x = 106,695.86

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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.