Home / 105,320.12-157,840.45-46,091.30

Finding the Fourth Proportional to 105,320.12, 157,840.45 and 46,091.30

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Solution

The fourth proportional to 105,320.12, 157,840.45 and 46,091.30 is: 69,075.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,320.12 : 157,840.45 = 46,091.30 : x
  2. Step 2: Convert to fraction form
    105,320.12/157,840.45 = 46,091.30/x
  3. Step 3: Cross multiply
    105,320.12x = 157,840.45 × 46,091.30
  4. Step 4: Simplify right side
    105,320.12x = 7,275,070,628.65
  5. Step 5: Solve for x
    x = 7,275,070,628.65/105,320.12
  6. Step 6: Final answer
    x = 69,075.79

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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.