Home / 104,565.12-155,740.80-104,055.36

Finding the Fourth Proportional to 104,565.12, 155,740.80 and 104,055.36

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Solution

The fourth proportional to 104,565.12, 155,740.80 and 104,055.36 is: 154,981.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,565.12 : 155,740.80 = 104,055.36 : x
  2. Step 2: Convert to fraction form
    104,565.12/155,740.80 = 104,055.36/x
  3. Step 3: Cross multiply
    104,565.12x = 155,740.80 × 104,055.36
  4. Step 4: Simplify right side
    104,565.12x = 16,205,665,010.69
  5. Step 5: Solve for x
    x = 16,205,665,010.69/104,565.12
  6. Step 6: Final answer
    x = 154,981.56

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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.