Home / 105,701.46-145,868.22-57,955.62

Finding the Fourth Proportional to 105,701.46, 145,868.22 and 57,955.62

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Solution

The fourth proportional to 105,701.46, 145,868.22 and 57,955.62 is: 79,978.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,701.46 : 145,868.22 = 57,955.62 : x
  2. Step 2: Convert to fraction form
    105,701.46/145,868.22 = 57,955.62/x
  3. Step 3: Cross multiply
    105,701.46x = 145,868.22 × 57,955.62
  4. Step 4: Simplify right side
    105,701.46x = 8,453,883,128.40
  5. Step 5: Solve for x
    x = 8,453,883,128.40/105,701.46
  6. Step 6: Final answer
    x = 79,978.87

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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.