Home / 118,988.10-164,117.88-76,506.04

Finding the Fourth Proportional to 118,988.10, 164,117.88 and 76,506.04

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Solution

The fourth proportional to 118,988.10, 164,117.88 and 76,506.04 is: 105,523.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,988.10 : 164,117.88 = 76,506.04 : x
  2. Step 2: Convert to fraction form
    118,988.10/164,117.88 = 76,506.04/x
  3. Step 3: Cross multiply
    118,988.10x = 164,117.88 × 76,506.04
  4. Step 4: Simplify right side
    118,988.10x = 12,556,009,092.00
  5. Step 5: Solve for x
    x = 12,556,009,092.00/118,988.10
  6. Step 6: Final answer
    x = 105,523.23

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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.