Home / 84,868.40-127,438.60-67,482.80

Finding the Fourth Proportional to 84,868.40, 127,438.60 and 67,482.80

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Solution

The fourth proportional to 84,868.40, 127,438.60 and 67,482.80 is: 101,332.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,868.40 : 127,438.60 = 67,482.80 : x
  2. Step 2: Convert to fraction form
    84,868.40/127,438.60 = 67,482.80/x
  3. Step 3: Cross multiply
    84,868.40x = 127,438.60 × 67,482.80
  4. Step 4: Simplify right side
    84,868.40x = 8,599,913,556.08
  5. Step 5: Solve for x
    x = 8,599,913,556.08/84,868.40
  6. Step 6: Final answer
    x = 101,332.34

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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.