Home / 152,511.08-210,473.04-87,956.31

Finding the Fourth Proportional to 152,511.08, 210,473.04 and 87,956.31

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Solution

The fourth proportional to 152,511.08, 210,473.04 and 87,956.31 is: 121,384.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,511.08 : 210,473.04 = 87,956.31 : x
  2. Step 2: Convert to fraction form
    152,511.08/210,473.04 = 87,956.31/x
  3. Step 3: Cross multiply
    152,511.08x = 210,473.04 × 87,956.31
  4. Step 4: Simplify right side
    152,511.08x = 18,512,431,952.88
  5. Step 5: Solve for x
    x = 18,512,431,952.88/152,511.08
  6. Step 6: Final answer
    x = 121,384.18

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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.