Home / 103,665.08-154,427.73-100,528.86

Finding the Fourth Proportional to 103,665.08, 154,427.73 and 100,528.86

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Solution

The fourth proportional to 103,665.08, 154,427.73 and 100,528.86 is: 149,755.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,665.08 : 154,427.73 = 100,528.86 : x
  2. Step 2: Convert to fraction form
    103,665.08/154,427.73 = 100,528.86/x
  3. Step 3: Cross multiply
    103,665.08x = 154,427.73 × 100,528.86
  4. Step 4: Simplify right side
    103,665.08x = 15,524,443,649.29
  5. Step 5: Solve for x
    x = 15,524,443,649.29/103,665.08
  6. Step 6: Final answer
    x = 149,755.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.