Home / 137,960.96-190,455.02-90,287.13

Finding the Fourth Proportional to 137,960.96, 190,455.02 and 90,287.13

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Solution

The fourth proportional to 137,960.96, 190,455.02 and 90,287.13 is: 124,641.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,960.96 : 190,455.02 = 90,287.13 : x
  2. Step 2: Convert to fraction form
    137,960.96/190,455.02 = 90,287.13/x
  3. Step 3: Cross multiply
    137,960.96x = 190,455.02 × 90,287.13
  4. Step 4: Simplify right side
    137,960.96x = 17,195,637,375.61
  5. Step 5: Solve for x
    x = 17,195,637,375.61/137,960.96
  6. Step 6: Final answer
    x = 124,641.33

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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.