Home / 111,595.08-154,048.30-75,345.63

Finding the Fourth Proportional to 111,595.08, 154,048.30 and 75,345.63

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Solution

The fourth proportional to 111,595.08, 154,048.30 and 75,345.63 is: 104,008.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,595.08 : 154,048.30 = 75,345.63 : x
  2. Step 2: Convert to fraction form
    111,595.08/154,048.30 = 75,345.63/x
  3. Step 3: Cross multiply
    111,595.08x = 154,048.30 × 75,345.63
  4. Step 4: Simplify right side
    111,595.08x = 11,606,866,213.93
  5. Step 5: Solve for x
    x = 11,606,866,213.93/111,595.08
  6. Step 6: Final answer
    x = 104,008.76

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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.