Home / 136,389.36-204,671.43-66,230.40

Finding the Fourth Proportional to 136,389.36, 204,671.43 and 66,230.40

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Solution

The fourth proportional to 136,389.36, 204,671.43 and 66,230.40 is: 99,388.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,389.36 : 204,671.43 = 66,230.40 : x
  2. Step 2: Convert to fraction form
    136,389.36/204,671.43 = 66,230.40/x
  3. Step 3: Cross multiply
    136,389.36x = 204,671.43 × 66,230.40
  4. Step 4: Simplify right side
    136,389.36x = 13,555,470,677.47
  5. Step 5: Solve for x
    x = 13,555,470,677.47/136,389.36
  6. Step 6: Final answer
    x = 99,388.04

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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.