Home / 103,518.46-142,837.64-58,190.16

Finding the Fourth Proportional to 103,518.46, 142,837.64 and 58,190.16

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Solution

The fourth proportional to 103,518.46, 142,837.64 and 58,190.16 is: 80,292.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,518.46 : 142,837.64 = 58,190.16 : x
  2. Step 2: Convert to fraction form
    103,518.46/142,837.64 = 58,190.16/x
  3. Step 3: Cross multiply
    103,518.46x = 142,837.64 × 58,190.16
  4. Step 4: Simplify right side
    103,518.46x = 8,311,745,125.62
  5. Step 5: Solve for x
    x = 8,311,745,125.62/103,518.46
  6. Step 6: Final answer
    x = 80,292.40

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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.