Home / 112,571.37-155,349.71-61,583

Finding the Fourth Proportional to 112,571.37, 155,349.71 and 61,583

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Solution

The fourth proportional to 112,571.37, 155,349.71 and 61,583 is: 84,985.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,571.37 : 155,349.71 = 61,583 : x
  2. Step 2: Convert to fraction form
    112,571.37/155,349.71 = 61,583/x
  3. Step 3: Cross multiply
    112,571.37x = 155,349.71 × 61,583
  4. Step 4: Simplify right side
    112,571.37x = 9,566,901,190.93
  5. Step 5: Solve for x
    x = 9,566,901,190.93/112,571.37
  6. Step 6: Final answer
    x = 84,985.21

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1.5x scale

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.