Home / 103,858.23-143,328.53-58,538.10

Finding the Fourth Proportional to 103,858.23, 143,328.53 and 58,538.10

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Solution

The fourth proportional to 103,858.23, 143,328.53 and 58,538.10 is: 80,784.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,858.23 : 143,328.53 = 58,538.10 : x
  2. Step 2: Convert to fraction form
    103,858.23/143,328.53 = 58,538.10/x
  3. Step 3: Cross multiply
    103,858.23x = 143,328.53 × 58,538.10
  4. Step 4: Simplify right side
    103,858.23x = 8,390,179,968.34
  5. Step 5: Solve for x
    x = 8,390,179,968.34/103,858.23
  6. Step 6: Final answer
    x = 80,784.93

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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.