Home / 137,747.22-190,061.55-90,070.62

Finding the Fourth Proportional to 137,747.22, 190,061.55 and 90,070.62

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Solution

The fourth proportional to 137,747.22, 190,061.55 and 90,070.62 is: 124,278.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,747.22 : 190,061.55 = 90,070.62 : x
  2. Step 2: Convert to fraction form
    137,747.22/190,061.55 = 90,070.62/x
  3. Step 3: Cross multiply
    137,747.22x = 190,061.55 × 90,070.62
  4. Step 4: Simplify right side
    137,747.22x = 17,118,961,646.66
  5. Step 5: Solve for x
    x = 17,118,961,646.66/137,747.22
  6. Step 6: Final answer
    x = 124,278.09

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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.