Home / 105,690.02-145,852.19-57,942.35

Finding the Fourth Proportional to 105,690.02, 145,852.19 and 57,942.35

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Solution

The fourth proportional to 105,690.02, 145,852.19 and 57,942.35 is: 79,960.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,690.02 : 145,852.19 = 57,942.35 : x
  2. Step 2: Convert to fraction form
    105,690.02/145,852.19 = 57,942.35/x
  3. Step 3: Cross multiply
    105,690.02x = 145,852.19 × 57,942.35
  4. Step 4: Simplify right side
    105,690.02x = 8,451,017,911.99
  5. Step 5: Solve for x
    x = 8,451,017,911.99/105,690.02
  6. Step 6: Final answer
    x = 79,960.42

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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.