Home / 137,749.43-190,070.19-77,322.62

Finding the Fourth Proportional to 137,749.43, 190,070.19 and 77,322.62

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Solution

The fourth proportional to 137,749.43, 190,070.19 and 77,322.62 is: 106,691.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,749.43 : 190,070.19 = 77,322.62 : x
  2. Step 2: Convert to fraction form
    137,749.43/190,070.19 = 77,322.62/x
  3. Step 3: Cross multiply
    137,749.43x = 190,070.19 × 77,322.62
  4. Step 4: Simplify right side
    137,749.43x = 14,696,724,124.35
  5. Step 5: Solve for x
    x = 14,696,724,124.35/137,749.43
  6. Step 6: Final answer
    x = 106,691.73

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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.