Home / 115,014.12-158,717.86-64,713

Finding the Fourth Proportional to 115,014.12, 158,717.86 and 64,713

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Solution

The fourth proportional to 115,014.12, 158,717.86 and 64,713 is: 89,303.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,014.12 : 158,717.86 = 64,713 : x
  2. Step 2: Convert to fraction form
    115,014.12/158,717.86 = 64,713/x
  3. Step 3: Cross multiply
    115,014.12x = 158,717.86 × 64,713
  4. Step 4: Simplify right side
    115,014.12x = 10,271,108,874.18
  5. Step 5: Solve for x
    x = 10,271,108,874.18/115,014.12
  6. Step 6: Final answer
    x = 89,303.03

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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.