Home / 100,734.65-139,002.90-58,285.25

Finding the Fourth Proportional to 100,734.65, 139,002.90 and 58,285.25

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Solution

The fourth proportional to 100,734.65, 139,002.90 and 58,285.25 is: 80,427.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,734.65 : 139,002.90 = 58,285.25 : x
  2. Step 2: Convert to fraction form
    100,734.65/139,002.90 = 58,285.25/x
  3. Step 3: Cross multiply
    100,734.65x = 139,002.90 × 58,285.25
  4. Step 4: Simplify right side
    100,734.65x = 8,101,818,777.23
  5. Step 5: Solve for x
    x = 8,101,818,777.23/100,734.65
  6. Step 6: Final answer
    x = 80,427.33

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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.