Home / 115,411.53-172,779.86-104,343.69

Finding the Fourth Proportional to 115,411.53, 172,779.86 and 104,343.69

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Solution

The fourth proportional to 115,411.53, 172,779.86 and 104,343.69 is: 156,210.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,411.53 : 172,779.86 = 104,343.69 : x
  2. Step 2: Convert to fraction form
    115,411.53/172,779.86 = 104,343.69/x
  3. Step 3: Cross multiply
    115,411.53x = 172,779.86 × 104,343.69
  4. Step 4: Simplify right side
    115,411.53x = 18,028,487,628.37
  5. Step 5: Solve for x
    x = 18,028,487,628.37/115,411.53
  6. Step 6: Final answer
    x = 156,210.46

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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.