Home / 109,985.58-151,904.43-74,113.34

Finding the Fourth Proportional to 109,985.58, 151,904.43 and 74,113.34

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Solution

The fourth proportional to 109,985.58, 151,904.43 and 74,113.34 is: 102,360.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,985.58 : 151,904.43 = 74,113.34 : x
  2. Step 2: Convert to fraction form
    109,985.58/151,904.43 = 74,113.34/x
  3. Step 3: Cross multiply
    109,985.58x = 151,904.43 × 74,113.34
  4. Step 4: Simplify right side
    109,985.58x = 11,258,143,908.57
  5. Step 5: Solve for x
    x = 11,258,143,908.57/109,985.58
  6. Step 6: Final answer
    x = 102,360.18

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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.