Home / 112,360.37-155,044.33-64,629.09

Finding the Fourth Proportional to 112,360.37, 155,044.33 and 64,629.09

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Solution

The fourth proportional to 112,360.37, 155,044.33 and 64,629.09 is: 89,180.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,360.37 : 155,044.33 = 64,629.09 : x
  2. Step 2: Convert to fraction form
    112,360.37/155,044.33 = 64,629.09/x
  3. Step 3: Cross multiply
    112,360.37x = 155,044.33 × 64,629.09
  4. Step 4: Simplify right side
    112,360.37x = 10,020,373,795.99
  5. Step 5: Solve for x
    x = 10,020,373,795.99/112,360.37
  6. Step 6: Final answer
    x = 89,180.68

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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.