Home / 165,030.81-247,324.47-90,038.58

Finding the Fourth Proportional to 165,030.81, 247,324.47 and 90,038.58

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Solution

The fourth proportional to 165,030.81, 247,324.47 and 90,038.58 is: 134,936.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,030.81 : 247,324.47 = 90,038.58 : x
  2. Step 2: Convert to fraction form
    165,030.81/247,324.47 = 90,038.58/x
  3. Step 3: Cross multiply
    165,030.81x = 247,324.47 × 90,038.58
  4. Step 4: Simplify right side
    165,030.81x = 22,268,744,078.05
  5. Step 5: Solve for x
    x = 22,268,744,078.05/165,030.81
  6. Step 6: Final answer
    x = 134,936.89

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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.