Home / 112,447.40-155,183.19-64,707.89

Finding the Fourth Proportional to 112,447.40, 155,183.19 and 64,707.89

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Solution

The fourth proportional to 112,447.40, 155,183.19 and 64,707.89 is: 89,300.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,447.40 : 155,183.19 = 64,707.89 : x
  2. Step 2: Convert to fraction form
    112,447.40/155,183.19 = 64,707.89/x
  3. Step 3: Cross multiply
    112,447.40x = 155,183.19 × 64,707.89
  4. Step 4: Simplify right side
    112,447.40x = 10,041,576,788.37
  5. Step 5: Solve for x
    x = 10,041,576,788.37/112,447.40
  6. Step 6: Final answer
    x = 89,300.21

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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.