Home / 100,397.09-149,775.46-93,238.31

Finding the Fourth Proportional to 100,397.09, 149,775.46 and 93,238.31

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Solution

The fourth proportional to 100,397.09, 149,775.46 and 93,238.31 is: 139,095.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,397.09 : 149,775.46 = 93,238.31 : x
  2. Step 2: Convert to fraction form
    100,397.09/149,775.46 = 93,238.31/x
  3. Step 3: Cross multiply
    100,397.09x = 149,775.46 × 93,238.31
  4. Step 4: Simplify right side
    100,397.09x = 13,964,810,769.87
  5. Step 5: Solve for x
    x = 13,964,810,769.87/100,397.09
  6. Step 6: Final answer
    x = 139,095.77

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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.