Home / 157,087.21-216,763.86-89,082.45

Finding the Fourth Proportional to 157,087.21, 216,763.86 and 89,082.45

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Solution

The fourth proportional to 157,087.21, 216,763.86 and 89,082.45 is: 122,924.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,087.21 : 216,763.86 = 89,082.45 : x
  2. Step 2: Convert to fraction form
    157,087.21/216,763.86 = 89,082.45/x
  3. Step 3: Cross multiply
    157,087.21x = 216,763.86 × 89,082.45
  4. Step 4: Simplify right side
    157,087.21x = 19,309,855,720.26
  5. Step 5: Solve for x
    x = 19,309,855,720.26/157,087.21
  6. Step 6: Final answer
    x = 122,924.43

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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.