Home / 102,993.75-142,133.58-58,281.75

Finding the Fourth Proportional to 102,993.75, 142,133.58 and 58,281.75

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Solution

The fourth proportional to 102,993.75, 142,133.58 and 58,281.75 is: 80,430.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,993.75 : 142,133.58 = 58,281.75 : x
  2. Step 2: Convert to fraction form
    102,993.75/142,133.58 = 58,281.75/x
  3. Step 3: Cross multiply
    102,993.75x = 142,133.58 × 58,281.75
  4. Step 4: Simplify right side
    102,993.75x = 8,283,793,776.17
  5. Step 5: Solve for x
    x = 8,283,793,776.17/102,993.75
  6. Step 6: Final answer
    x = 80,430.06

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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.