Home / 106,459.72-159,427.14-66,918.76

Finding the Fourth Proportional to 106,459.72, 159,427.14 and 66,918.76

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Solution

The fourth proportional to 106,459.72, 159,427.14 and 66,918.76 is: 100,213.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,459.72 : 159,427.14 = 66,918.76 : x
  2. Step 2: Convert to fraction form
    106,459.72/159,427.14 = 66,918.76/x
  3. Step 3: Cross multiply
    106,459.72x = 159,427.14 × 66,918.76
  4. Step 4: Simplify right side
    106,459.72x = 10,668,666,519.15
  5. Step 5: Solve for x
    x = 10,668,666,519.15/106,459.72
  6. Step 6: Final answer
    x = 100,213.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.