Home / 112,895.88-155,798.12-61,913.28

Finding the Fourth Proportional to 112,895.88, 155,798.12 and 61,913.28

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Solution

The fourth proportional to 112,895.88, 155,798.12 and 61,913.28 is: 85,441.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,895.88 : 155,798.12 = 61,913.28 : x
  2. Step 2: Convert to fraction form
    112,895.88/155,798.12 = 61,913.28/x
  3. Step 3: Cross multiply
    112,895.88x = 155,798.12 × 61,913.28
  4. Step 4: Simplify right side
    112,895.88x = 9,645,972,627.03
  5. Step 5: Solve for x
    x = 9,645,972,627.03/112,895.88
  6. Step 6: Final answer
    x = 85,441.32

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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.