Home / 105,702.14-145,867.92-57,955.38

Finding the Fourth Proportional to 105,702.14, 145,867.92 and 57,955.38

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Solution

The fourth proportional to 105,702.14, 145,867.92 and 57,955.38 is: 79,977.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,702.14 : 145,867.92 = 57,955.38 : x
  2. Step 2: Convert to fraction form
    105,702.14/145,867.92 = 57,955.38/x
  3. Step 3: Cross multiply
    105,702.14x = 145,867.92 × 57,955.38
  4. Step 4: Simplify right side
    105,702.14x = 8,453,830,733.41
  5. Step 5: Solve for x
    x = 8,453,830,733.41/105,702.14
  6. Step 6: Final answer
    x = 79,977.86

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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.