Home / 137,718.56-190,055.38-77,292.94

Finding the Fourth Proportional to 137,718.56, 190,055.38 and 77,292.94

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Solution

The fourth proportional to 137,718.56, 190,055.38 and 77,292.94 is: 106,666.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,718.56 : 190,055.38 = 77,292.94 : x
  2. Step 2: Convert to fraction form
    137,718.56/190,055.38 = 77,292.94/x
  3. Step 3: Cross multiply
    137,718.56x = 190,055.38 × 77,292.94
  4. Step 4: Simplify right side
    137,718.56x = 14,689,938,696.55
  5. Step 5: Solve for x
    x = 14,689,938,696.55/137,718.56
  6. Step 6: Final answer
    x = 106,666.37

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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.