Home / 103,573.46-142,927.26-61,145.66

Finding the Fourth Proportional to 103,573.46, 142,927.26 and 61,145.66

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Solution

The fourth proportional to 103,573.46, 142,927.26 and 61,145.66 is: 84,378.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,573.46 : 142,927.26 = 61,145.66 : x
  2. Step 2: Convert to fraction form
    103,573.46/142,927.26 = 61,145.66/x
  3. Step 3: Cross multiply
    103,573.46x = 142,927.26 × 61,145.66
  4. Step 4: Simplify right side
    103,573.46x = 8,739,381,644.69
  5. Step 5: Solve for x
    x = 8,739,381,644.69/103,573.46
  6. Step 6: Final answer
    x = 84,378.58

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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.