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Finding the Fourth Proportional to 112,679.67, 155,496.60 and 62,378.67

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Solution

The fourth proportional to 112,679.67, 155,496.60 and 62,378.67 is: 86,081.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,679.67 : 155,496.60 = 62,378.67 : x
  2. Step 2: Convert to fraction form
    112,679.67/155,496.60 = 62,378.67/x
  3. Step 3: Cross multiply
    112,679.67x = 155,496.60 × 62,378.67
  4. Step 4: Simplify right side
    112,679.67x = 9,699,671,097.52
  5. Step 5: Solve for x
    x = 9,699,671,097.52/112,679.67
  6. Step 6: Final answer
    x = 86,081.82

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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.