Home / 109,386.40-164,079.60-39,256.60

Finding the Fourth Proportional to 109,386.40, 164,079.60 and 39,256.60

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Solution

The fourth proportional to 109,386.40, 164,079.60 and 39,256.60 is: 58,884.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,386.40 : 164,079.60 = 39,256.60 : x
  2. Step 2: Convert to fraction form
    109,386.40/164,079.60 = 39,256.60/x
  3. Step 3: Cross multiply
    109,386.40x = 164,079.60 × 39,256.60
  4. Step 4: Simplify right side
    109,386.40x = 6,441,207,225.36
  5. Step 5: Solve for x
    x = 6,441,207,225.36/109,386.40
  6. Step 6: Final answer
    x = 58,884.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.