Home / 454,128.48-681,187.24-138,586.28

Finding the Fourth Proportional to 454,128.48, 681,187.24 and 138,586.28

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Solution

The fourth proportional to 454,128.48, 681,187.24 and 138,586.28 is: 207,877.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,128.48 : 681,187.24 = 138,586.28 : x
  2. Step 2: Convert to fraction form
    454,128.48/681,187.24 = 138,586.28/x
  3. Step 3: Cross multiply
    454,128.48x = 681,187.24 × 138,586.28
  4. Step 4: Simplify right side
    454,128.48x = 94,403,205,575.07
  5. Step 5: Solve for x
    x = 94,403,205,575.07/454,128.48
  6. Step 6: Final answer
    x = 207,877.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.