Home / 137,964.47-190,392.63-77,531.58

Finding the Fourth Proportional to 137,964.47, 190,392.63 and 77,531.58

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Solution

The fourth proportional to 137,964.47, 190,392.63 and 77,531.58 is: 106,994.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,964.47 : 190,392.63 = 77,531.58 : x
  2. Step 2: Convert to fraction form
    137,964.47/190,392.63 = 77,531.58/x
  3. Step 3: Cross multiply
    137,964.47x = 190,392.63 × 77,531.58
  4. Step 4: Simplify right side
    137,964.47x = 14,761,441,133.51
  5. Step 5: Solve for x
    x = 14,761,441,133.51/137,964.47
  6. Step 6: Final answer
    x = 106,994.52

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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.