Home / 154,607.86-213,354.40-90,091.36

Finding the Fourth Proportional to 154,607.86, 213,354.40 and 90,091.36

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Solution

The fourth proportional to 154,607.86, 213,354.40 and 90,091.36 is: 124,323.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,607.86 : 213,354.40 = 90,091.36 : x
  2. Step 2: Convert to fraction form
    154,607.86/213,354.40 = 90,091.36/x
  3. Step 3: Cross multiply
    154,607.86x = 213,354.40 × 90,091.36
  4. Step 4: Simplify right side
    154,607.86x = 19,221,388,057.98
  5. Step 5: Solve for x
    x = 19,221,388,057.98/154,607.86
  6. Step 6: Final answer
    x = 124,323.49

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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.