Home / 106,858.20-147,437.82-69,087

Finding the Fourth Proportional to 106,858.20, 147,437.82 and 69,087

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Solution

The fourth proportional to 106,858.20, 147,437.82 and 69,087 is: 95,322.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,858.20 : 147,437.82 = 69,087 : x
  2. Step 2: Convert to fraction form
    106,858.20/147,437.82 = 69,087/x
  3. Step 3: Cross multiply
    106,858.20x = 147,437.82 × 69,087
  4. Step 4: Simplify right side
    106,858.20x = 10,186,036,670.34
  5. Step 5: Solve for x
    x = 10,186,036,670.34/106,858.20
  6. Step 6: Final answer
    x = 95,322.93

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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.