Home / 145,984.29-219,226.59-90,154.77

Finding the Fourth Proportional to 145,984.29, 219,226.59 and 90,154.77

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Solution

The fourth proportional to 145,984.29, 219,226.59 and 90,154.77 is: 135,386.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,984.29 : 219,226.59 = 90,154.77 : x
  2. Step 2: Convert to fraction form
    145,984.29/219,226.59 = 90,154.77/x
  3. Step 3: Cross multiply
    145,984.29x = 219,226.59 × 90,154.77
  4. Step 4: Simplify right side
    145,984.29x = 19,764,322,799.33
  5. Step 5: Solve for x
    x = 19,764,322,799.33/145,984.29
  6. Step 6: Final answer
    x = 135,386.64

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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.