Home / 165,071.10-228,011.80-136,506.15

Finding the Fourth Proportional to 165,071.10, 228,011.80 and 136,506.15

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Solution

The fourth proportional to 165,071.10, 228,011.80 and 136,506.15 is: 188,555.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,071.10 : 228,011.80 = 136,506.15 : x
  2. Step 2: Convert to fraction form
    165,071.10/228,011.80 = 136,506.15/x
  3. Step 3: Cross multiply
    165,071.10x = 228,011.80 × 136,506.15
  4. Step 4: Simplify right side
    165,071.10x = 31,125,012,972.57
  5. Step 5: Solve for x
    x = 31,125,012,972.57/165,071.10
  6. Step 6: Final answer
    x = 188,555.19

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1.5x scale

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.