Home / 112,655.44-155,450.76-89,743.60

Finding the Fourth Proportional to 112,655.44, 155,450.76 and 89,743.60

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Solution

The fourth proportional to 112,655.44, 155,450.76 and 89,743.60 is: 123,835.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,655.44 : 155,450.76 = 89,743.60 : x
  2. Step 2: Convert to fraction form
    112,655.44/155,450.76 = 89,743.60/x
  3. Step 3: Cross multiply
    112,655.44x = 155,450.76 × 89,743.60
  4. Step 4: Simplify right side
    112,655.44x = 13,950,710,825.14
  5. Step 5: Solve for x
    x = 13,950,710,825.14/112,655.44
  6. Step 6: Final answer
    x = 123,835.22

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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.