Home / 215,423.60-323,135.40-122,111.60

Finding the Fourth Proportional to 215,423.60, 323,135.40 and 122,111.60

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Solution

The fourth proportional to 215,423.60, 323,135.40 and 122,111.60 is: 183,167.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,423.60 : 323,135.40 = 122,111.60 : x
  2. Step 2: Convert to fraction form
    215,423.60/323,135.40 = 122,111.60/x
  3. Step 3: Cross multiply
    215,423.60x = 323,135.40 × 122,111.60
  4. Step 4: Simplify right side
    215,423.60x = 39,458,580,710.64
  5. Step 5: Solve for x
    x = 39,458,580,710.64/215,423.60
  6. Step 6: Final answer
    x = 183,167.40

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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.