Home / 152,145.50-209,956.92-84,165.26

Finding the Fourth Proportional to 152,145.50, 209,956.92 and 84,165.26

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Solution

The fourth proportional to 152,145.50, 209,956.92 and 84,165.26 is: 116,145.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,145.50 : 209,956.92 = 84,165.26 : x
  2. Step 2: Convert to fraction form
    152,145.50/209,956.92 = 84,165.26/x
  3. Step 3: Cross multiply
    152,145.50x = 209,956.92 × 84,165.26
  4. Step 4: Simplify right side
    152,145.50x = 17,671,078,760.60
  5. Step 5: Solve for x
    x = 17,671,078,760.60/152,145.50
  6. Step 6: Final answer
    x = 116,145.92

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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.