Home / 109,421.87-151,003.33-61,675.22

Finding the Fourth Proportional to 109,421.87, 151,003.33 and 61,675.22

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Solution

The fourth proportional to 109,421.87, 151,003.33 and 61,675.22 is: 85,112.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,421.87 : 151,003.33 = 61,675.22 : x
  2. Step 2: Convert to fraction form
    109,421.87/151,003.33 = 61,675.22/x
  3. Step 3: Cross multiply
    109,421.87x = 151,003.33 × 61,675.22
  4. Step 4: Simplify right side
    109,421.87x = 9,313,163,486.82
  5. Step 5: Solve for x
    x = 9,313,163,486.82/109,421.87
  6. Step 6: Final answer
    x = 85,112.45

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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.