Home / 118,979.23-164,195.95-65,266.51

Finding the Fourth Proportional to 118,979.23, 164,195.95 and 65,266.51

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Solution

The fourth proportional to 118,979.23, 164,195.95 and 65,266.51 is: 90,070.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,979.23 : 164,195.95 = 65,266.51 : x
  2. Step 2: Convert to fraction form
    118,979.23/164,195.95 = 65,266.51/x
  3. Step 3: Cross multiply
    118,979.23x = 164,195.95 × 65,266.51
  4. Step 4: Simplify right side
    118,979.23x = 10,716,496,612.63
  5. Step 5: Solve for x
    x = 10,716,496,612.63/118,979.23
  6. Step 6: Final answer
    x = 90,070.31

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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.