Home / 155,064.51-213,994.19-87,093.46

Finding the Fourth Proportional to 155,064.51, 213,994.19 and 87,093.46

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Solution

The fourth proportional to 155,064.51, 213,994.19 and 87,093.46 is: 120,191.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,064.51 : 213,994.19 = 87,093.46 : x
  2. Step 2: Convert to fraction form
    155,064.51/213,994.19 = 87,093.46/x
  3. Step 3: Cross multiply
    155,064.51x = 213,994.19 × 87,093.46
  4. Step 4: Simplify right side
    155,064.51x = 18,637,494,427.00
  5. Step 5: Solve for x
    x = 18,637,494,427.00/155,064.51
  6. Step 6: Final answer
    x = 120,191.88

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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.