Home / 152,712.23-210,732.84-84,729.02

Finding the Fourth Proportional to 152,712.23, 210,732.84 and 84,729.02

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Solution

The fourth proportional to 152,712.23, 210,732.84 and 84,729.02 is: 116,920.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,712.23 : 210,732.84 = 84,729.02 : x
  2. Step 2: Convert to fraction form
    152,712.23/210,732.84 = 84,729.02/x
  3. Step 3: Cross multiply
    152,712.23x = 210,732.84 × 84,729.02
  4. Step 4: Simplify right side
    152,712.23x = 17,855,185,961.35
  5. Step 5: Solve for x
    x = 17,855,185,961.35/152,712.23
  6. Step 6: Final answer
    x = 116,920.48

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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.