Home / 106,987.14-147,647.32-64,544.76

Finding the Fourth Proportional to 106,987.14, 147,647.32 and 64,544.76

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Solution

The fourth proportional to 106,987.14, 147,647.32 and 64,544.76 is: 89,074.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,987.14 : 147,647.32 = 64,544.76 : x
  2. Step 2: Convert to fraction form
    106,987.14/147,647.32 = 64,544.76/x
  3. Step 3: Cross multiply
    106,987.14x = 147,647.32 × 64,544.76
  4. Step 4: Simplify right side
    106,987.14x = 9,529,860,834.04
  5. Step 5: Solve for x
    x = 9,529,860,834.04/106,987.14
  6. Step 6: Final answer
    x = 89,074.83

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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.