Home / 249,531.39-374,404.32-81,103.35

Finding the Fourth Proportional to 249,531.39, 374,404.32 and 81,103.35

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Solution

The fourth proportional to 249,531.39, 374,404.32 and 81,103.35 is: 121,689.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,531.39 : 374,404.32 = 81,103.35 : x
  2. Step 2: Convert to fraction form
    249,531.39/374,404.32 = 81,103.35/x
  3. Step 3: Cross multiply
    249,531.39x = 374,404.32 × 81,103.35
  4. Step 4: Simplify right side
    249,531.39x = 30,365,444,606.47
  5. Step 5: Solve for x
    x = 30,365,444,606.47/249,531.39
  6. Step 6: Final answer
    x = 121,689.88

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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.