Home / 112,480.98-155,219.67-74,728.50

Finding the Fourth Proportional to 112,480.98, 155,219.67 and 74,728.50

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Solution

The fourth proportional to 112,480.98, 155,219.67 and 74,728.50 is: 103,122.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,480.98 : 155,219.67 = 74,728.50 : x
  2. Step 2: Convert to fraction form
    112,480.98/155,219.67 = 74,728.50/x
  3. Step 3: Cross multiply
    112,480.98x = 155,219.67 × 74,728.50
  4. Step 4: Simplify right side
    112,480.98x = 11,599,333,109.60
  5. Step 5: Solve for x
    x = 11,599,333,109.60/112,480.98
  6. Step 6: Final answer
    x = 103,122.62

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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.