Home / 215,938.08-297,981.72-125,287.02

Finding the Fourth Proportional to 215,938.08, 297,981.72 and 125,287.02

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Solution

The fourth proportional to 215,938.08, 297,981.72 and 125,287.02 is: 172,888.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,938.08 : 297,981.72 = 125,287.02 : x
  2. Step 2: Convert to fraction form
    215,938.08/297,981.72 = 125,287.02/x
  3. Step 3: Cross multiply
    215,938.08x = 297,981.72 × 125,287.02
  4. Step 4: Simplify right side
    215,938.08x = 37,333,241,713.27
  5. Step 5: Solve for x
    x = 37,333,241,713.27/215,938.08
  6. Step 6: Final answer
    x = 172,888.64

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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.