Home / 454,372.83-681,681.96-138,821.13

Finding the Fourth Proportional to 454,372.83, 681,681.96 and 138,821.13

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Solution

The fourth proportional to 454,372.83, 681,681.96 and 138,821.13 is: 208,269.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,372.83 : 681,681.96 = 138,821.13 : x
  2. Step 2: Convert to fraction form
    454,372.83/681,681.96 = 138,821.13/x
  3. Step 3: Cross multiply
    454,372.83x = 681,681.96 × 138,821.13
  4. Step 4: Simplify right side
    454,372.83x = 94,631,859,987.81
  5. Step 5: Solve for x
    x = 94,631,859,987.81/454,372.83
  6. Step 6: Final answer
    x = 208,269.19

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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.