Home / 105,031.56-144,940.14-57,285.84

Finding the Fourth Proportional to 105,031.56, 144,940.14 and 57,285.84

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Solution

The fourth proportional to 105,031.56, 144,940.14 and 57,285.84 is: 79,052.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,031.56 : 144,940.14 = 57,285.84 : x
  2. Step 2: Convert to fraction form
    105,031.56/144,940.14 = 57,285.84/x
  3. Step 3: Cross multiply
    105,031.56x = 144,940.14 × 57,285.84
  4. Step 4: Simplify right side
    105,031.56x = 8,303,017,669.62
  5. Step 5: Solve for x
    x = 8,303,017,669.62/105,031.56
  6. Step 6: Final answer
    x = 79,052.60

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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.