Home / 145,286.93-200,519.75-121,049.45

Finding the Fourth Proportional to 145,286.93, 200,519.75 and 121,049.45

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Solution

The fourth proportional to 145,286.93, 200,519.75 and 121,049.45 is: 167,068.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,286.93 : 200,519.75 = 121,049.45 : x
  2. Step 2: Convert to fraction form
    145,286.93/200,519.75 = 121,049.45/x
  3. Step 3: Cross multiply
    145,286.93x = 200,519.75 × 121,049.45
  4. Step 4: Simplify right side
    145,286.93x = 24,272,803,843.79
  5. Step 5: Solve for x
    x = 24,272,803,843.79/145,286.93
  6. Step 6: Final answer
    x = 167,068.05

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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.