Home / 215,713.87-297,686.04-118,915.60

Finding the Fourth Proportional to 215,713.87, 297,686.04 and 118,915.60

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Solution

The fourth proportional to 215,713.87, 297,686.04 and 118,915.60 is: 164,104.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,713.87 : 297,686.04 = 118,915.60 : x
  2. Step 2: Convert to fraction form
    215,713.87/297,686.04 = 118,915.60/x
  3. Step 3: Cross multiply
    215,713.87x = 297,686.04 × 118,915.60
  4. Step 4: Simplify right side
    215,713.87x = 35,399,514,058.22
  5. Step 5: Solve for x
    x = 35,399,514,058.22/215,713.87
  6. Step 6: Final answer
    x = 164,104.02

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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.