Home / 103,868.73-143,341.65-63,581.76

Finding the Fourth Proportional to 103,868.73, 143,341.65 and 63,581.76

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Solution

The fourth proportional to 103,868.73, 143,341.65 and 63,581.76 is: 87,744.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,868.73 : 143,341.65 = 63,581.76 : x
  2. Step 2: Convert to fraction form
    103,868.73/143,341.65 = 63,581.76/x
  3. Step 3: Cross multiply
    103,868.73x = 143,341.65 × 63,581.76
  4. Step 4: Simplify right side
    103,868.73x = 9,113,914,388.30
  5. Step 5: Solve for x
    x = 9,113,914,388.30/103,868.73
  6. Step 6: Final answer
    x = 87,744.54

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1.5x scale

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.