Home / 121,450.61-181,816.08-90,001.83

Finding the Fourth Proportional to 121,450.61, 181,816.08 and 90,001.83

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Solution

The fourth proportional to 121,450.61, 181,816.08 and 90,001.83 is: 134,736.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,450.61 : 181,816.08 = 90,001.83 : x
  2. Step 2: Convert to fraction form
    121,450.61/181,816.08 = 90,001.83/x
  3. Step 3: Cross multiply
    121,450.61x = 181,816.08 × 90,001.83
  4. Step 4: Simplify right side
    121,450.61x = 16,363,780,267.73
  5. Step 5: Solve for x
    x = 16,363,780,267.73/121,450.61
  6. Step 6: Final answer
    x = 134,736.09

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1.5x scale

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.