Home / 249,607.54-374,374.59-81,143.20

Finding the Fourth Proportional to 249,607.54, 374,374.59 and 81,143.20

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Solution

The fourth proportional to 249,607.54, 374,374.59 and 81,143.20 is: 121,702.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,607.54 : 374,374.59 = 81,143.20 : x
  2. Step 2: Convert to fraction form
    249,607.54/374,374.59 = 81,143.20/x
  3. Step 3: Cross multiply
    249,607.54x = 374,374.59 × 81,143.20
  4. Step 4: Simplify right side
    249,607.54x = 30,377,952,231.29
  5. Step 5: Solve for x
    x = 30,377,952,231.29/249,607.54
  6. Step 6: Final answer
    x = 121,702.86

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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.