Home / 125,107.32-187,639.83-35,129.40

Finding the Fourth Proportional to 125,107.32, 187,639.83 and 35,129.40

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Solution

The fourth proportional to 125,107.32, 187,639.83 and 35,129.40 is: 52,688.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,107.32 : 187,639.83 = 35,129.40 : x
  2. Step 2: Convert to fraction form
    125,107.32/187,639.83 = 35,129.40/x
  3. Step 3: Cross multiply
    125,107.32x = 187,639.83 × 35,129.40
  4. Step 4: Simplify right side
    125,107.32x = 6,591,674,644.00
  5. Step 5: Solve for x
    x = 6,591,674,644.00/125,107.32
  6. Step 6: Final answer
    x = 52,688.16

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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.