Home / 125,825.16-188,737.74-42,717

Finding the Fourth Proportional to 125,825.16, 188,737.74 and 42,717

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Solution

The fourth proportional to 125,825.16, 188,737.74 and 42,717 is: 64,075.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,825.16 : 188,737.74 = 42,717 : x
  2. Step 2: Convert to fraction form
    125,825.16/188,737.74 = 42,717/x
  3. Step 3: Cross multiply
    125,825.16x = 188,737.74 × 42,717
  4. Step 4: Simplify right side
    125,825.16x = 8,062,310,039.58
  5. Step 5: Solve for x
    x = 8,062,310,039.58/125,825.16
  6. Step 6: Final answer
    x = 64,075.50

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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.