Home / 99,726.71-149,618.21-40,604.81

Finding the Fourth Proportional to 99,726.71, 149,618.21 and 40,604.81

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Solution

The fourth proportional to 99,726.71, 149,618.21 and 40,604.81 is: 60,918.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,726.71 : 149,618.21 = 40,604.81 : x
  2. Step 2: Convert to fraction form
    99,726.71/149,618.21 = 40,604.81/x
  3. Step 3: Cross multiply
    99,726.71x = 149,618.21 × 40,604.81
  4. Step 4: Simplify right side
    99,726.71x = 6,075,218,038.48
  5. Step 5: Solve for x
    x = 6,075,218,038.48/99,726.71
  6. Step 6: Final answer
    x = 60,918.67

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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.