Home / 137,776.16-190,142.09-77,350.77

Finding the Fourth Proportional to 137,776.16, 190,142.09 and 77,350.77

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Solution

The fourth proportional to 137,776.16, 190,142.09 and 77,350.77 is: 106,750.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,776.16 : 190,142.09 = 77,350.77 : x
  2. Step 2: Convert to fraction form
    137,776.16/190,142.09 = 77,350.77/x
  3. Step 3: Cross multiply
    137,776.16x = 190,142.09 × 77,350.77
  4. Step 4: Simplify right side
    137,776.16x = 14,707,636,684.16
  5. Step 5: Solve for x
    x = 14,707,636,684.16/137,776.16
  6. Step 6: Final answer
    x = 106,750.23

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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.