Home / 154,551.09-213,353.55-103,597.11

Finding the Fourth Proportional to 154,551.09, 213,353.55 and 103,597.11

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Solution

The fourth proportional to 154,551.09, 213,353.55 and 103,597.11 is: 143,012.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,551.09 : 213,353.55 = 103,597.11 : x
  2. Step 2: Convert to fraction form
    154,551.09/213,353.55 = 103,597.11/x
  3. Step 3: Cross multiply
    154,551.09x = 213,353.55 × 103,597.11
  4. Step 4: Simplify right side
    154,551.09x = 22,102,810,913.85
  5. Step 5: Solve for x
    x = 22,102,810,913.85/154,551.09
  6. Step 6: Final answer
    x = 143,012.98

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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.