Home / 157,028.10-216,719.78-89,069.70

Finding the Fourth Proportional to 157,028.10, 216,719.78 and 89,069.70

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Solution

The fourth proportional to 157,028.10, 216,719.78 and 89,069.70 is: 122,928.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,028.10 : 216,719.78 = 89,069.70 : x
  2. Step 2: Convert to fraction form
    157,028.10/216,719.78 = 89,069.70/x
  3. Step 3: Cross multiply
    157,028.10x = 216,719.78 × 89,069.70
  4. Step 4: Simplify right side
    157,028.10x = 19,303,165,788.67
  5. Step 5: Solve for x
    x = 19,303,165,788.67/157,028.10
  6. Step 6: Final answer
    x = 122,928.10

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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.