Home / 109,714.95-151,466.89-68,921.63

Finding the Fourth Proportional to 109,714.95, 151,466.89 and 68,921.63

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Solution

The fourth proportional to 109,714.95, 151,466.89 and 68,921.63 is: 95,149.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,714.95 : 151,466.89 = 68,921.63 : x
  2. Step 2: Convert to fraction form
    109,714.95/151,466.89 = 68,921.63/x
  3. Step 3: Cross multiply
    109,714.95x = 151,466.89 × 68,921.63
  4. Step 4: Simplify right side
    109,714.95x = 10,439,344,020.19
  5. Step 5: Solve for x
    x = 10,439,344,020.19/109,714.95
  6. Step 6: Final answer
    x = 95,149.69

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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.