Home / 109,723.64-151,415.52-65,011.64

Finding the Fourth Proportional to 109,723.64, 151,415.52 and 65,011.64

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Solution

The fourth proportional to 109,723.64, 151,415.52 and 65,011.64 is: 89,714.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,723.64 : 151,415.52 = 65,011.64 : x
  2. Step 2: Convert to fraction form
    109,723.64/151,415.52 = 65,011.64/x
  3. Step 3: Cross multiply
    109,723.64x = 151,415.52 × 65,011.64
  4. Step 4: Simplify right side
    109,723.64x = 9,843,771,276.65
  5. Step 5: Solve for x
    x = 9,843,771,276.65/109,723.64
  6. Step 6: Final answer
    x = 89,714.22

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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.