Home / 215,111.47-296,861.04-118,319.42

Finding the Fourth Proportional to 215,111.47, 296,861.04 and 118,319.42

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Solution

The fourth proportional to 215,111.47, 296,861.04 and 118,319.42 is: 163,284.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,111.47 : 296,861.04 = 118,319.42 : x
  2. Step 2: Convert to fraction form
    215,111.47/296,861.04 = 118,319.42/x
  3. Step 3: Cross multiply
    215,111.47x = 296,861.04 × 118,319.42
  4. Step 4: Simplify right side
    215,111.47x = 35,124,423,997.49
  5. Step 5: Solve for x
    x = 35,124,423,997.49/215,111.47
  6. Step 6: Final answer
    x = 163,284.76

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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.