Home / 103,574.46-142,928.64-61,146.66

Finding the Fourth Proportional to 103,574.46, 142,928.64 and 61,146.66

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Solution

The fourth proportional to 103,574.46, 142,928.64 and 61,146.66 is: 84,379.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,574.46 : 142,928.64 = 61,146.66 : x
  2. Step 2: Convert to fraction form
    103,574.46/142,928.64 = 61,146.66/x
  3. Step 3: Cross multiply
    103,574.46x = 142,928.64 × 61,146.66
  4. Step 4: Simplify right side
    103,574.46x = 8,739,608,954.34
  5. Step 5: Solve for x
    x = 8,739,608,954.34/103,574.46
  6. Step 6: Final answer
    x = 84,379.96

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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.