Home / 137,854.10-190,238.70-77,424.83

Finding the Fourth Proportional to 137,854.10, 190,238.70 and 77,424.83

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Solution

The fourth proportional to 137,854.10, 190,238.70 and 77,424.83 is: 106,846.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,854.10 : 190,238.70 = 77,424.83 : x
  2. Step 2: Convert to fraction form
    137,854.10/190,238.70 = 77,424.83/x
  3. Step 3: Cross multiply
    137,854.10x = 190,238.70 × 77,424.83
  4. Step 4: Simplify right side
    137,854.10x = 14,729,199,006.92
  5. Step 5: Solve for x
    x = 14,729,199,006.92/137,854.10
  6. Step 6: Final answer
    x = 106,846.29

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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.