Home / 137,701.98-190,013.31-77,260.05

Finding the Fourth Proportional to 137,701.98, 190,013.31 and 77,260.05

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Solution

The fourth proportional to 137,701.98, 190,013.31 and 77,260.05 is: 106,610.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,701.98 : 190,013.31 = 77,260.05 : x
  2. Step 2: Convert to fraction form
    137,701.98/190,013.31 = 77,260.05/x
  3. Step 3: Cross multiply
    137,701.98x = 190,013.31 × 77,260.05
  4. Step 4: Simplify right side
    137,701.98x = 14,680,437,831.27
  5. Step 5: Solve for x
    x = 14,680,437,831.27/137,701.98
  6. Step 6: Final answer
    x = 106,610.22

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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.