Home / 139,429.02-192,412.07-75,766.67

Finding the Fourth Proportional to 139,429.02, 192,412.07 and 75,766.67

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Solution

The fourth proportional to 139,429.02, 192,412.07 and 75,766.67 is: 104,558.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,429.02 : 192,412.07 = 75,766.67 : x
  2. Step 2: Convert to fraction form
    139,429.02/192,412.07 = 75,766.67/x
  3. Step 3: Cross multiply
    139,429.02x = 192,412.07 × 75,766.67
  4. Step 4: Simplify right side
    139,429.02x = 14,578,421,811.71
  5. Step 5: Solve for x
    x = 14,578,421,811.71/139,429.02
  6. Step 6: Final answer
    x = 104,558.02

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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.