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Finding the Fourth Proportional to 159,477, 239,215.50 and 65,985.18

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Solution

The fourth proportional to 159,477, 239,215.50 and 65,985.18 is: 98,977.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,477 : 239,215.50 = 65,985.18 : x
  2. Step 2: Convert to fraction form
    159,477/239,215.50 = 65,985.18/x
  3. Step 3: Cross multiply
    159,477x = 239,215.50 × 65,985.18
  4. Step 4: Simplify right side
    159,477x = 15,784,677,826.29
  5. Step 5: Solve for x
    x = 15,784,677,826.29/159,477
  6. Step 6: Final answer
    x = 98,977.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.