Home / 103,740.55-143,146.01-58,417.36

Finding the Fourth Proportional to 103,740.55, 143,146.01 and 58,417.36

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Solution

The fourth proportional to 103,740.55, 143,146.01 and 58,417.36 is: 80,606.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,740.55 : 143,146.01 = 58,417.36 : x
  2. Step 2: Convert to fraction form
    103,740.55/143,146.01 = 58,417.36/x
  3. Step 3: Cross multiply
    103,740.55x = 143,146.01 × 58,417.36
  4. Step 4: Simplify right side
    103,740.55x = 8,362,211,786.91
  5. Step 5: Solve for x
    x = 8,362,211,786.91/103,740.55
  6. Step 6: Final answer
    x = 80,606.98

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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.