Home / 109,407.93-164,115.53-30,515.55

Finding the Fourth Proportional to 109,407.93, 164,115.53 and 30,515.55

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Solution

The fourth proportional to 109,407.93, 164,115.53 and 30,515.55 is: 45,774.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,407.93 : 164,115.53 = 30,515.55 : x
  2. Step 2: Convert to fraction form
    109,407.93/164,115.53 = 30,515.55/x
  3. Step 3: Cross multiply
    109,407.93x = 164,115.53 × 30,515.55
  4. Step 4: Simplify right side
    109,407.93x = 5,008,075,661.49
  5. Step 5: Solve for x
    x = 5,008,075,661.49/109,407.93
  6. Step 6: Final answer
    x = 45,774.34

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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.