Home / 137,840.98-190,225.14-77,422.28

Finding the Fourth Proportional to 137,840.98, 190,225.14 and 77,422.28

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Solution

The fourth proportional to 137,840.98, 190,225.14 and 77,422.28 is: 106,845.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,840.98 : 190,225.14 = 77,422.28 : x
  2. Step 2: Convert to fraction form
    137,840.98/190,225.14 = 77,422.28/x
  3. Step 3: Cross multiply
    137,840.98x = 190,225.14 × 77,422.28
  4. Step 4: Simplify right side
    137,840.98x = 14,727,664,052.12
  5. Step 5: Solve for x
    x = 14,727,664,052.12/137,840.98
  6. Step 6: Final answer
    x = 106,845.32

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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.