Home / 137,782.41-190,129.20-77,341.37

Finding the Fourth Proportional to 137,782.41, 190,129.20 and 77,341.37

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Solution

The fourth proportional to 137,782.41, 190,129.20 and 77,341.37 is: 106,725.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,782.41 : 190,129.20 = 77,341.37 : x
  2. Step 2: Convert to fraction form
    137,782.41/190,129.20 = 77,341.37/x
  3. Step 3: Cross multiply
    137,782.41x = 190,129.20 × 77,341.37
  4. Step 4: Simplify right side
    137,782.41x = 14,704,852,567.34
  5. Step 5: Solve for x
    x = 14,704,852,567.34/137,782.41
  6. Step 6: Final answer
    x = 106,725.18

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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.