Home / 137,911.55-190,306.26-77,477.45

Finding the Fourth Proportional to 137,911.55, 190,306.26 and 77,477.45

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Solution

The fourth proportional to 137,911.55, 190,306.26 and 77,477.45 is: 106,912.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,911.55 : 190,306.26 = 77,477.45 : x
  2. Step 2: Convert to fraction form
    137,911.55/190,306.26 = 77,477.45/x
  3. Step 3: Cross multiply
    137,911.55x = 190,306.26 × 77,477.45
  4. Step 4: Simplify right side
    137,911.55x = 14,744,443,743.84
  5. Step 5: Solve for x
    x = 14,744,443,743.84/137,911.55
  6. Step 6: Final answer
    x = 106,912.32

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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.