Home / 118,908.29-164,089.05-65,192.12

Finding the Fourth Proportional to 118,908.29, 164,089.05 and 65,192.12

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Solution

The fourth proportional to 118,908.29, 164,089.05 and 65,192.12 is: 89,962.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,908.29 : 164,089.05 = 65,192.12 : x
  2. Step 2: Convert to fraction form
    118,908.29/164,089.05 = 65,192.12/x
  3. Step 3: Cross multiply
    118,908.29x = 164,089.05 × 65,192.12
  4. Step 4: Simplify right side
    118,908.29x = 10,697,312,217.84
  5. Step 5: Solve for x
    x = 10,697,312,217.84/118,908.29
  6. Step 6: Final answer
    x = 89,962.72

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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.