Home / 157,025.85-216,696.24-85,405.95

Finding the Fourth Proportional to 157,025.85, 216,696.24 and 85,405.95

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Solution

The fourth proportional to 157,025.85, 216,696.24 and 85,405.95 is: 117,860.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,025.85 : 216,696.24 = 85,405.95 : x
  2. Step 2: Convert to fraction form
    157,025.85/216,696.24 = 85,405.95/x
  3. Step 3: Cross multiply
    157,025.85x = 216,696.24 × 85,405.95
  4. Step 4: Simplify right side
    157,025.85x = 18,507,148,238.63
  5. Step 5: Solve for x
    x = 18,507,148,238.63/157,025.85
  6. Step 6: Final answer
    x = 117,860.52

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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.