Home / 152,743.54-210,785.64-84,770.77

Finding the Fourth Proportional to 152,743.54, 210,785.64 and 84,770.77

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Solution

The fourth proportional to 152,743.54, 210,785.64 and 84,770.77 is: 116,983.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,743.54 : 210,785.64 = 84,770.77 : x
  2. Step 2: Convert to fraction form
    152,743.54/210,785.64 = 84,770.77/x
  3. Step 3: Cross multiply
    152,743.54x = 210,785.64 × 84,770.77
  4. Step 4: Simplify right side
    152,743.54x = 17,868,461,007.74
  5. Step 5: Solve for x
    x = 17,868,461,007.74/152,743.54
  6. Step 6: Final answer
    x = 116,983.42

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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.