Home / 249,962.64-374,982.80-81,443.76

Finding the Fourth Proportional to 249,962.64, 374,982.80 and 81,443.76

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Solution

The fourth proportional to 249,962.64, 374,982.80 and 81,443.76 is: 122,178.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,962.64 : 374,982.80 = 81,443.76 : x
  2. Step 2: Convert to fraction form
    249,962.64/374,982.80 = 81,443.76/x
  3. Step 3: Cross multiply
    249,962.64x = 374,982.80 × 81,443.76
  4. Step 4: Simplify right side
    249,962.64x = 30,540,009,167.33
  5. Step 5: Solve for x
    x = 30,540,009,167.33/249,962.64
  6. Step 6: Final answer
    x = 122,178.29

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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.