Home / 149,390.62-206,153.81-83,977.45

Finding the Fourth Proportional to 149,390.62, 206,153.81 and 83,977.45

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Solution

The fourth proportional to 149,390.62, 206,153.81 and 83,977.45 is: 115,885.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,390.62 : 206,153.81 = 83,977.45 : x
  2. Step 2: Convert to fraction form
    149,390.62/206,153.81 = 83,977.45/x
  3. Step 3: Cross multiply
    149,390.62x = 206,153.81 × 83,977.45
  4. Step 4: Simplify right side
    149,390.62x = 17,312,271,271.58
  5. Step 5: Solve for x
    x = 17,312,271,271.58/149,390.62
  6. Step 6: Final answer
    x = 115,885.93

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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.