Home / 221,085.58-305,011.48-136,055.02

Finding the Fourth Proportional to 221,085.58, 305,011.48 and 136,055.02

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Solution

The fourth proportional to 221,085.58, 305,011.48 and 136,055.02 is: 187,702.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,085.58 : 305,011.48 = 136,055.02 : x
  2. Step 2: Convert to fraction form
    221,085.58/305,011.48 = 136,055.02/x
  3. Step 3: Cross multiply
    221,085.58x = 305,011.48 × 136,055.02
  4. Step 4: Simplify right side
    221,085.58x = 41,498,343,011.63
  5. Step 5: Solve for x
    x = 41,498,343,011.63/221,085.58
  6. Step 6: Final answer
    x = 187,702.62

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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.