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Finding the Fourth Proportional to 114,354.56, 157,690.32 and 90,443.36

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Solution

The fourth proportional to 114,354.56, 157,690.32 and 90,443.36 is: 124,717.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,354.56 : 157,690.32 = 90,443.36 : x
  2. Step 2: Convert to fraction form
    114,354.56/157,690.32 = 90,443.36/x
  3. Step 3: Cross multiply
    114,354.56x = 157,690.32 × 90,443.36
  4. Step 4: Simplify right side
    114,354.56x = 14,262,042,380.28
  5. Step 5: Solve for x
    x = 14,262,042,380.28/114,354.56
  6. Step 6: Final answer
    x = 124,717.74

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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.