Home / 120,030.48-165,651.75-66,320.28

Finding the Fourth Proportional to 120,030.48, 165,651.75 and 66,320.28

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Solution

The fourth proportional to 120,030.48, 165,651.75 and 66,320.28 is: 91,527.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,030.48 : 165,651.75 = 66,320.28 : x
  2. Step 2: Convert to fraction form
    120,030.48/165,651.75 = 66,320.28/x
  3. Step 3: Cross multiply
    120,030.48x = 165,651.75 × 66,320.28
  4. Step 4: Simplify right side
    120,030.48x = 10,986,070,442.49
  5. Step 5: Solve for x
    x = 10,986,070,442.49/120,030.48
  6. Step 6: Final answer
    x = 91,527.34

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1.5x scale

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.