Home / 215,523.90-297,432.21-120,030.60

Finding the Fourth Proportional to 215,523.90, 297,432.21 and 120,030.60

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Solution

The fourth proportional to 215,523.90, 297,432.21 and 120,030.60 is: 165,647.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,523.90 : 297,432.21 = 120,030.60 : x
  2. Step 2: Convert to fraction form
    215,523.90/297,432.21 = 120,030.60/x
  3. Step 3: Cross multiply
    215,523.90x = 297,432.21 × 120,030.60
  4. Step 4: Simplify right side
    215,523.90x = 35,700,966,625.63
  5. Step 5: Solve for x
    x = 35,700,966,625.63/215,523.90
  6. Step 6: Final answer
    x = 165,647.37

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1.5x scale

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.