Home / 139,319.49-192,331.71-88,384.26

Finding the Fourth Proportional to 139,319.49, 192,331.71 and 88,384.26

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Solution

The fourth proportional to 139,319.49, 192,331.71 and 88,384.26 is: 122,015.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,319.49 : 192,331.71 = 88,384.26 : x
  2. Step 2: Convert to fraction form
    139,319.49/192,331.71 = 88,384.26/x
  3. Step 3: Cross multiply
    139,319.49x = 192,331.71 × 88,384.26
  4. Step 4: Simplify right side
    139,319.49x = 16,999,095,862.88
  5. Step 5: Solve for x
    x = 16,999,095,862.88/139,319.49
  6. Step 6: Final answer
    x = 122,015.20

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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.