Home / 105,828.26-145,990.98-77,103.23

Finding the Fourth Proportional to 105,828.26, 145,990.98 and 77,103.23

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Solution

The fourth proportional to 105,828.26, 145,990.98 and 77,103.23 is: 106,364.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,828.26 : 145,990.98 = 77,103.23 : x
  2. Step 2: Convert to fraction form
    105,828.26/145,990.98 = 77,103.23/x
  3. Step 3: Cross multiply
    105,828.26x = 145,990.98 × 77,103.23
  4. Step 4: Simplify right side
    105,828.26x = 11,256,376,108.87
  5. Step 5: Solve for x
    x = 11,256,376,108.87/105,828.26
  6. Step 6: Final answer
    x = 106,364.56

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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.