Home / 137,924.04-190,335.30-78,308.04

Finding the Fourth Proportional to 137,924.04, 190,335.30 and 78,308.04

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Solution

The fourth proportional to 137,924.04, 190,335.30 and 78,308.04 is: 108,065.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,924.04 : 190,335.30 = 78,308.04 : x
  2. Step 2: Convert to fraction form
    137,924.04/190,335.30 = 78,308.04/x
  3. Step 3: Cross multiply
    137,924.04x = 190,335.30 × 78,308.04
  4. Step 4: Simplify right side
    137,924.04x = 14,904,784,285.81
  5. Step 5: Solve for x
    x = 14,904,784,285.81/137,924.04
  6. Step 6: Final answer
    x = 108,065.17

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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.