Home / 125,795.28-173,669.40-83,411.40

Finding the Fourth Proportional to 125,795.28, 173,669.40 and 83,411.40

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Solution

The fourth proportional to 125,795.28, 173,669.40 and 83,411.40 is: 115,155.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,795.28 : 173,669.40 = 83,411.40 : x
  2. Step 2: Convert to fraction form
    125,795.28/173,669.40 = 83,411.40/x
  3. Step 3: Cross multiply
    125,795.28x = 173,669.40 × 83,411.40
  4. Step 4: Simplify right side
    125,795.28x = 14,486,007,791.16
  5. Step 5: Solve for x
    x = 14,486,007,791.16/125,795.28
  6. Step 6: Final answer
    x = 115,155.42

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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.