Home / 104,329.89-143,966.57-61,881.03

Finding the Fourth Proportional to 104,329.89, 143,966.57 and 61,881.03

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Solution

The fourth proportional to 104,329.89, 143,966.57 and 61,881.03 is: 85,390.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,329.89 : 143,966.57 = 61,881.03 : x
  2. Step 2: Convert to fraction form
    104,329.89/143,966.57 = 61,881.03/x
  3. Step 3: Cross multiply
    104,329.89x = 143,966.57 × 61,881.03
  4. Step 4: Simplify right side
    104,329.89x = 8,908,799,327.76
  5. Step 5: Solve for x
    x = 8,908,799,327.76/104,329.89
  6. Step 6: Final answer
    x = 85,390.67

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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.