Home / 152,040.51-209,821.74-100,964.94

Finding the Fourth Proportional to 152,040.51, 209,821.74 and 100,964.94

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Solution

The fourth proportional to 152,040.51, 209,821.74 and 100,964.94 is: 139,335.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,040.51 : 209,821.74 = 100,964.94 : x
  2. Step 2: Convert to fraction form
    152,040.51/209,821.74 = 100,964.94/x
  3. Step 3: Cross multiply
    152,040.51x = 209,821.74 × 100,964.94
  4. Step 4: Simplify right side
    152,040.51x = 21,184,639,389.80
  5. Step 5: Solve for x
    x = 21,184,639,389.80/152,040.51
  6. Step 6: Final answer
    x = 139,335.49

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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.