Home / 84,815.10-127,222.65-65,132.10

Finding the Fourth Proportional to 84,815.10, 127,222.65 and 65,132.10

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Solution

The fourth proportional to 84,815.10, 127,222.65 and 65,132.10 is: 97,698.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,815.10 : 127,222.65 = 65,132.10 : x
  2. Step 2: Convert to fraction form
    84,815.10/127,222.65 = 65,132.10/x
  3. Step 3: Cross multiply
    84,815.10x = 127,222.65 × 65,132.10
  4. Step 4: Simplify right side
    84,815.10x = 8,286,278,362.07
  5. Step 5: Solve for x
    x = 8,286,278,362.07/84,815.10
  6. Step 6: Final answer
    x = 97,698.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.