Home / 145,519.24-200,813.58-85,125.64

Finding the Fourth Proportional to 145,519.24, 200,813.58 and 85,125.64

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Solution

The fourth proportional to 145,519.24, 200,813.58 and 85,125.64 is: 117,471.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,519.24 : 200,813.58 = 85,125.64 : x
  2. Step 2: Convert to fraction form
    145,519.24/200,813.58 = 85,125.64/x
  3. Step 3: Cross multiply
    145,519.24x = 200,813.58 × 85,125.64
  4. Step 4: Simplify right side
    145,519.24x = 17,094,384,518.19
  5. Step 5: Solve for x
    x = 17,094,384,518.19/145,519.24
  6. Step 6: Final answer
    x = 117,471.65

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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.