Home / 103,513.50-142,808.16-58,181.09

Finding the Fourth Proportional to 103,513.50, 142,808.16 and 58,181.09

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Solution

The fourth proportional to 103,513.50, 142,808.16 and 58,181.09 is: 80,267.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,513.50 : 142,808.16 = 58,181.09 : x
  2. Step 2: Convert to fraction form
    103,513.50/142,808.16 = 58,181.09/x
  3. Step 3: Cross multiply
    103,513.50x = 142,808.16 × 58,181.09
  4. Step 4: Simplify right side
    103,513.50x = 8,308,733,695.65
  5. Step 5: Solve for x
    x = 8,308,733,695.65/103,513.50
  6. Step 6: Final answer
    x = 80,267.15

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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.