Home / 144,629.40-216,944.10-82,421.40

Finding the Fourth Proportional to 144,629.40, 216,944.10 and 82,421.40

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Solution

The fourth proportional to 144,629.40, 216,944.10 and 82,421.40 is: 123,632.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,629.40 : 216,944.10 = 82,421.40 : x
  2. Step 2: Convert to fraction form
    144,629.40/216,944.10 = 82,421.40/x
  3. Step 3: Cross multiply
    144,629.40x = 216,944.10 × 82,421.40
  4. Step 4: Simplify right side
    144,629.40x = 17,880,836,443.74
  5. Step 5: Solve for x
    x = 17,880,836,443.74/144,629.40
  6. Step 6: Final answer
    x = 123,632.10

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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.