Home / 272,775.69-409,227.93-85,787.19

Finding the Fourth Proportional to 272,775.69, 409,227.93 and 85,787.19

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Solution

The fourth proportional to 272,775.69, 409,227.93 and 85,787.19 is: 128,701.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,775.69 : 409,227.93 = 85,787.19 : x
  2. Step 2: Convert to fraction form
    272,775.69/409,227.93 = 85,787.19/x
  3. Step 3: Cross multiply
    272,775.69x = 409,227.93 × 85,787.19
  4. Step 4: Simplify right side
    272,775.69x = 35,106,514,184.22
  5. Step 5: Solve for x
    x = 35,106,514,184.22/272,775.69
  6. Step 6: Final answer
    x = 128,701.04

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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.