Home / 130,093.10-179,537.56-72,743.60

Finding the Fourth Proportional to 130,093.10, 179,537.56 and 72,743.60

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Solution

The fourth proportional to 130,093.10, 179,537.56 and 72,743.60 is: 100,391.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,093.10 : 179,537.56 = 72,743.60 : x
  2. Step 2: Convert to fraction form
    130,093.10/179,537.56 = 72,743.60/x
  3. Step 3: Cross multiply
    130,093.10x = 179,537.56 × 72,743.60
  4. Step 4: Simplify right side
    130,093.10x = 13,060,207,370.07
  5. Step 5: Solve for x
    x = 13,060,207,370.07/130,093.10
  6. Step 6: Final answer
    x = 100,391.24

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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.