Home / 112,379.13-154,977.53-83,762.24

Finding the Fourth Proportional to 112,379.13, 154,977.53 and 83,762.24

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Solution

The fourth proportional to 112,379.13, 154,977.53 and 83,762.24 is: 115,513.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,379.13 : 154,977.53 = 83,762.24 : x
  2. Step 2: Convert to fraction form
    112,379.13/154,977.53 = 83,762.24/x
  3. Step 3: Cross multiply
    112,379.13x = 154,977.53 × 83,762.24
  4. Step 4: Simplify right side
    112,379.13x = 12,981,263,868.77
  5. Step 5: Solve for x
    x = 12,981,263,868.77/112,379.13
  6. Step 6: Final answer
    x = 115,513.12

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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.