Home / 112,085.14-154,678.53-61,785.94

Finding the Fourth Proportional to 112,085.14, 154,678.53 and 61,785.94

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Solution

The fourth proportional to 112,085.14, 154,678.53 and 61,785.94 is: 85,265.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,085.14 : 154,678.53 = 61,785.94 : x
  2. Step 2: Convert to fraction form
    112,085.14/154,678.53 = 61,785.94/x
  3. Step 3: Cross multiply
    112,085.14x = 154,678.53 × 61,785.94
  4. Step 4: Simplify right side
    112,085.14x = 9,556,958,373.87
  5. Step 5: Solve for x
    x = 9,556,958,373.87/112,085.14
  6. Step 6: Final answer
    x = 85,265.17

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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.