Home / 122,779.76-183,273.28-105,361.52

Finding the Fourth Proportional to 122,779.76, 183,273.28 and 105,361.52

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Solution

The fourth proportional to 122,779.76, 183,273.28 and 105,361.52 is: 157,273.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,779.76 : 183,273.28 = 105,361.52 : x
  2. Step 2: Convert to fraction form
    122,779.76/183,273.28 = 105,361.52/x
  3. Step 3: Cross multiply
    122,779.76x = 183,273.28 × 105,361.52
  4. Step 4: Simplify right side
    122,779.76x = 19,309,951,356.19
  5. Step 5: Solve for x
    x = 19,309,951,356.19/122,779.76
  6. Step 6: Final answer
    x = 157,273.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.