Home / 103,670.55-143,029.70-62,847.83

Finding the Fourth Proportional to 103,670.55, 143,029.70 and 62,847.83

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Solution

The fourth proportional to 103,670.55, 143,029.70 and 62,847.83 is: 86,708.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,670.55 : 143,029.70 = 62,847.83 : x
  2. Step 2: Convert to fraction form
    103,670.55/143,029.70 = 62,847.83/x
  3. Step 3: Cross multiply
    103,670.55x = 143,029.70 × 62,847.83
  4. Step 4: Simplify right side
    103,670.55x = 8,989,106,549.57
  5. Step 5: Solve for x
    x = 8,989,106,549.57/103,670.55
  6. Step 6: Final answer
    x = 86,708.39

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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.