Home / 142,129.20-213,193.80-141,092.40

Finding the Fourth Proportional to 142,129.20, 213,193.80 and 141,092.40

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Solution

The fourth proportional to 142,129.20, 213,193.80 and 141,092.40 is: 211,638.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,129.20 : 213,193.80 = 141,092.40 : x
  2. Step 2: Convert to fraction form
    142,129.20/213,193.80 = 141,092.40/x
  3. Step 3: Cross multiply
    142,129.20x = 213,193.80 × 141,092.40
  4. Step 4: Simplify right side
    142,129.20x = 30,080,024,907.12
  5. Step 5: Solve for x
    x = 30,080,024,907.12/142,129.20
  6. Step 6: Final answer
    x = 211,638.60

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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.