Home / 144,048.78-198,795.06-80,386.02

Finding the Fourth Proportional to 144,048.78, 198,795.06 and 80,386.02

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Solution

The fourth proportional to 144,048.78, 198,795.06 and 80,386.02 is: 110,937.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,048.78 : 198,795.06 = 80,386.02 : x
  2. Step 2: Convert to fraction form
    144,048.78/198,795.06 = 80,386.02/x
  3. Step 3: Cross multiply
    144,048.78x = 198,795.06 × 80,386.02
  4. Step 4: Simplify right side
    144,048.78x = 15,980,343,669.06
  5. Step 5: Solve for x
    x = 15,980,343,669.06/144,048.78
  6. Step 6: Final answer
    x = 110,937.03

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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.