Home / 147,779.72-203,937.36-84,121.64

Finding the Fourth Proportional to 147,779.72, 203,937.36 and 84,121.64

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Solution

The fourth proportional to 147,779.72, 203,937.36 and 84,121.64 is: 116,088.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,779.72 : 203,937.36 = 84,121.64 : x
  2. Step 2: Convert to fraction form
    147,779.72/203,937.36 = 84,121.64/x
  3. Step 3: Cross multiply
    147,779.72x = 203,937.36 × 84,121.64
  4. Step 4: Simplify right side
    147,779.72x = 17,155,545,180.47
  5. Step 5: Solve for x
    x = 17,155,545,180.47/147,779.72
  6. Step 6: Final answer
    x = 116,088.63

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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.