Home / 163,839.79-245,645.46-72,605.51

Finding the Fourth Proportional to 163,839.79, 245,645.46 and 72,605.51

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Solution

The fourth proportional to 163,839.79, 245,645.46 and 72,605.51 is: 108,857.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,839.79 : 245,645.46 = 72,605.51 : x
  2. Step 2: Convert to fraction form
    163,839.79/245,645.46 = 72,605.51/x
  3. Step 3: Cross multiply
    163,839.79x = 245,645.46 × 72,605.51
  4. Step 4: Simplify right side
    163,839.79x = 17,835,214,041.06
  5. Step 5: Solve for x
    x = 17,835,214,041.06/163,839.79
  6. Step 6: Final answer
    x = 108,857.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.