Home / 115,438.65-172,845.18-59,918.01

Finding the Fourth Proportional to 115,438.65, 172,845.18 and 59,918.01

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Solution

The fourth proportional to 115,438.65, 172,845.18 and 59,918.01 is: 89,714.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,438.65 : 172,845.18 = 59,918.01 : x
  2. Step 2: Convert to fraction form
    115,438.65/172,845.18 = 59,918.01/x
  3. Step 3: Cross multiply
    115,438.65x = 172,845.18 × 59,918.01
  4. Step 4: Simplify right side
    115,438.65x = 10,356,539,223.69
  5. Step 5: Solve for x
    x = 10,356,539,223.69/115,438.65
  6. Step 6: Final answer
    x = 89,714.66

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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.