Home / 152,467.08-210,398.88-87,939.03

Finding the Fourth Proportional to 152,467.08, 210,398.88 and 87,939.03

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Solution

The fourth proportional to 152,467.08, 210,398.88 and 87,939.03 is: 121,352.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,467.08 : 210,398.88 = 87,939.03 : x
  2. Step 2: Convert to fraction form
    152,467.08/210,398.88 = 87,939.03/x
  3. Step 3: Cross multiply
    152,467.08x = 210,398.88 × 87,939.03
  4. Step 4: Simplify right side
    152,467.08x = 18,502,273,420.29
  5. Step 5: Solve for x
    x = 18,502,273,420.29/152,467.08
  6. Step 6: Final answer
    x = 121,352.58

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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.