Home / 137,910.55-190,304.88-77,476.45

Finding the Fourth Proportional to 137,910.55, 190,304.88 and 77,476.45

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Solution

The fourth proportional to 137,910.55, 190,304.88 and 77,476.45 is: 106,910.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,910.55 : 190,304.88 = 77,476.45 : x
  2. Step 2: Convert to fraction form
    137,910.55/190,304.88 = 77,476.45/x
  3. Step 3: Cross multiply
    137,910.55x = 190,304.88 × 77,476.45
  4. Step 4: Simplify right side
    137,910.55x = 14,744,146,520.08
  5. Step 5: Solve for x
    x = 14,744,146,520.08/137,910.55
  6. Step 6: Final answer
    x = 106,910.94

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1.5x scale

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.