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Finding the Fourth Proportional to 152,065.71, 228,144.47 and 80,976.06

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Solution

The fourth proportional to 152,065.71, 228,144.47 and 80,976.06 is: 121,488.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,065.71 : 228,144.47 = 80,976.06 : x
  2. Step 2: Convert to fraction form
    152,065.71/228,144.47 = 80,976.06/x
  3. Step 3: Cross multiply
    152,065.71x = 228,144.47 × 80,976.06
  4. Step 4: Simplify right side
    152,065.71x = 18,474,239,886.51
  5. Step 5: Solve for x
    x = 18,474,239,886.51/152,065.71
  6. Step 6: Final answer
    x = 121,488.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.