Home / 102,720.30-154,007.55-46,587.30

Finding the Fourth Proportional to 102,720.30, 154,007.55 and 46,587.30

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Solution

The fourth proportional to 102,720.30, 154,007.55 and 46,587.30 is: 69,847.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,720.30 : 154,007.55 = 46,587.30 : x
  2. Step 2: Convert to fraction form
    102,720.30/154,007.55 = 46,587.30/x
  3. Step 3: Cross multiply
    102,720.30x = 154,007.55 × 46,587.30
  4. Step 4: Simplify right side
    102,720.30x = 7,174,795,934.12
  5. Step 5: Solve for x
    x = 7,174,795,934.12/102,720.30
  6. Step 6: Final answer
    x = 69,847.89

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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.