Home / 152,787.15-210,843-84,800.16

Finding the Fourth Proportional to 152,787.15, 210,843 and 84,800.16

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Solution

The fourth proportional to 152,787.15, 210,843 and 84,800.16 is: 117,022.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,787.15 : 210,843 = 84,800.16 : x
  2. Step 2: Convert to fraction form
    152,787.15/210,843 = 84,800.16/x
  3. Step 3: Cross multiply
    152,787.15x = 210,843 × 84,800.16
  4. Step 4: Simplify right side
    152,787.15x = 17,879,520,134.88
  5. Step 5: Solve for x
    x = 17,879,520,134.88/152,787.15
  6. Step 6: Final answer
    x = 117,022.41

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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.