Home / 139,218.69-192,088.51-84,770.22

Finding the Fourth Proportional to 139,218.69, 192,088.51 and 84,770.22

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Solution

The fourth proportional to 139,218.69, 192,088.51 and 84,770.22 is: 116,962.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,218.69 : 192,088.51 = 84,770.22 : x
  2. Step 2: Convert to fraction form
    139,218.69/192,088.51 = 84,770.22/x
  3. Step 3: Cross multiply
    139,218.69x = 192,088.51 × 84,770.22
  4. Step 4: Simplify right side
    139,218.69x = 16,283,385,252.17
  5. Step 5: Solve for x
    x = 16,283,385,252.17/139,218.69
  6. Step 6: Final answer
    x = 116,962.64

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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.