Home / 139,802.58-192,927.77-76,140.63

Finding the Fourth Proportional to 139,802.58, 192,927.77 and 76,140.63

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Solution

The fourth proportional to 139,802.58, 192,927.77 and 76,140.63 is: 105,074.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,802.58 : 192,927.77 = 76,140.63 : x
  2. Step 2: Convert to fraction form
    139,802.58/192,927.77 = 76,140.63/x
  3. Step 3: Cross multiply
    139,802.58x = 192,927.77 × 76,140.63
  4. Step 4: Simplify right side
    139,802.58x = 14,689,641,571.59
  5. Step 5: Solve for x
    x = 14,689,641,571.59/139,802.58
  6. Step 6: Final answer
    x = 105,074.18

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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.