Home / 103,671.49-143,071.25-58,352.39

Finding the Fourth Proportional to 103,671.49, 143,071.25 and 58,352.39

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Solution

The fourth proportional to 103,671.49, 143,071.25 and 58,352.39 is: 80,528.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,671.49 : 143,071.25 = 58,352.39 : x
  2. Step 2: Convert to fraction form
    103,671.49/143,071.25 = 58,352.39/x
  3. Step 3: Cross multiply
    103,671.49x = 143,071.25 × 58,352.39
  4. Step 4: Simplify right side
    103,671.49x = 8,348,549,377.79
  5. Step 5: Solve for x
    x = 8,348,549,377.79/103,671.49
  6. Step 6: Final answer
    x = 80,528.88

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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.