Home / 105,454.00-145,521.85-57,709.36

Finding the Fourth Proportional to 105,454.00, 145,521.85 and 57,709.36

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Solution

The fourth proportional to 105,454.00, 145,521.85 and 57,709.36 is: 79,636.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,454.00 : 145,521.85 = 57,709.36 : x
  2. Step 2: Convert to fraction form
    105,454.00/145,521.85 = 57,709.36/x
  3. Step 3: Cross multiply
    105,454.00x = 145,521.85 × 57,709.36
  4. Step 4: Simplify right side
    105,454.00x = 8,397,971,813.36
  5. Step 5: Solve for x
    x = 8,397,971,813.36/105,454.00
  6. Step 6: Final answer
    x = 79,636.36

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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.