Home / 137,938.94-190,373.32-84,212.46

Finding the Fourth Proportional to 137,938.94, 190,373.32 and 84,212.46

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Solution

The fourth proportional to 137,938.94, 190,373.32 and 84,212.46 is: 116,223.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,938.94 : 190,373.32 = 84,212.46 : x
  2. Step 2: Convert to fraction form
    137,938.94/190,373.32 = 84,212.46/x
  3. Step 3: Cross multiply
    137,938.94x = 190,373.32 × 84,212.46
  4. Step 4: Simplify right side
    137,938.94x = 16,031,805,595.57
  5. Step 5: Solve for x
    x = 16,031,805,595.57/137,938.94
  6. Step 6: Final answer
    x = 116,223.93

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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.