Home / 103,515.60-142,842.75-58,190.16

Finding the Fourth Proportional to 103,515.60, 142,842.75 and 58,190.16

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Solution

The fourth proportional to 103,515.60, 142,842.75 and 58,190.16 is: 80,297.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,515.60 : 142,842.75 = 58,190.16 : x
  2. Step 2: Convert to fraction form
    103,515.60/142,842.75 = 58,190.16/x
  3. Step 3: Cross multiply
    103,515.60x = 142,842.75 × 58,190.16
  4. Step 4: Simplify right side
    103,515.60x = 8,312,042,477.34
  5. Step 5: Solve for x
    x = 8,312,042,477.34/103,515.60
  6. Step 6: Final answer
    x = 80,297.49

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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.