Home / 106,809.03-147,425.67-66,499.18

Finding the Fourth Proportional to 106,809.03, 147,425.67 and 66,499.18

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Solution

The fourth proportional to 106,809.03, 147,425.67 and 66,499.18 is: 91,787.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,809.03 : 147,425.67 = 66,499.18 : x
  2. Step 2: Convert to fraction form
    106,809.03/147,425.67 = 66,499.18/x
  3. Step 3: Cross multiply
    106,809.03x = 147,425.67 × 66,499.18
  4. Step 4: Simplify right side
    106,809.03x = 9,803,685,797.39
  5. Step 5: Solve for x
    x = 9,803,685,797.39/106,809.03
  6. Step 6: Final answer
    x = 91,787.05

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1.5x scale

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.