Home / 142,125.30-212,907.15-92,240.10

Finding the Fourth Proportional to 142,125.30, 212,907.15 and 92,240.10

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Solution

The fourth proportional to 142,125.30, 212,907.15 and 92,240.10 is: 138,177.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,125.30 : 212,907.15 = 92,240.10 : x
  2. Step 2: Convert to fraction form
    142,125.30/212,907.15 = 92,240.10/x
  3. Step 3: Cross multiply
    142,125.30x = 212,907.15 × 92,240.10
  4. Step 4: Simplify right side
    142,125.30x = 19,638,576,806.72
  5. Step 5: Solve for x
    x = 19,638,576,806.72/142,125.30
  6. Step 6: Final answer
    x = 138,177.91

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1.5x scale

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.