Home / 106,818.21-147,364.61-61,485.35

Finding the Fourth Proportional to 106,818.21, 147,364.61 and 61,485.35

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Solution

The fourth proportional to 106,818.21, 147,364.61 and 61,485.35 is: 84,824.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,818.21 : 147,364.61 = 61,485.35 : x
  2. Step 2: Convert to fraction form
    106,818.21/147,364.61 = 61,485.35/x
  3. Step 3: Cross multiply
    106,818.21x = 147,364.61 × 61,485.35
  4. Step 4: Simplify right side
    106,818.21x = 9,060,763,579.21
  5. Step 5: Solve for x
    x = 9,060,763,579.21/106,818.21
  6. Step 6: Final answer
    x = 84,824.15

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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.