Home / 155,252.79-214,271.54-87,275.36

Finding the Fourth Proportional to 155,252.79, 214,271.54 and 87,275.36

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Solution

The fourth proportional to 155,252.79, 214,271.54 and 87,275.36 is: 120,452.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,252.79 : 214,271.54 = 87,275.36 : x
  2. Step 2: Convert to fraction form
    155,252.79/214,271.54 = 87,275.36/x
  3. Step 3: Cross multiply
    155,252.79x = 214,271.54 × 87,275.36
  4. Step 4: Simplify right side
    155,252.79x = 18,700,625,791.25
  5. Step 5: Solve for x
    x = 18,700,625,791.25/155,252.79
  6. Step 6: Final answer
    x = 120,452.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.