Home / 109,442.64-151,028.81-61,696.02

Finding the Fourth Proportional to 109,442.64, 151,028.81 and 61,696.02

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Solution

The fourth proportional to 109,442.64, 151,028.81 and 61,696.02 is: 85,139.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,442.64 : 151,028.81 = 61,696.02 : x
  2. Step 2: Convert to fraction form
    109,442.64/151,028.81 = 61,696.02/x
  3. Step 3: Cross multiply
    109,442.64x = 151,028.81 × 61,696.02
  4. Step 4: Simplify right side
    109,442.64x = 9,317,876,482.34
  5. Step 5: Solve for x
    x = 9,317,876,482.34/109,442.64
  6. Step 6: Final answer
    x = 85,139.36

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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.