Home / 101,084.85-139,497.09-55,762.94

Finding the Fourth Proportional to 101,084.85, 139,497.09 and 55,762.94

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Solution

The fourth proportional to 101,084.85, 139,497.09 and 55,762.94 is: 76,952.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,084.85 : 139,497.09 = 55,762.94 : x
  2. Step 2: Convert to fraction form
    101,084.85/139,497.09 = 55,762.94/x
  3. Step 3: Cross multiply
    101,084.85x = 139,497.09 × 55,762.94
  4. Step 4: Simplify right side
    101,084.85x = 7,778,767,162.36
  5. Step 5: Solve for x
    x = 7,778,767,162.36/101,084.85
  6. Step 6: Final answer
    x = 76,952.85

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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.