Home / 105,813.67-146,000.06-61,075.75

Finding the Fourth Proportional to 105,813.67, 146,000.06 and 61,075.75

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Solution

The fourth proportional to 105,813.67, 146,000.06 and 61,075.75 is: 84,271.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,813.67 : 146,000.06 = 61,075.75 : x
  2. Step 2: Convert to fraction form
    105,813.67/146,000.06 = 61,075.75/x
  3. Step 3: Cross multiply
    105,813.67x = 146,000.06 × 61,075.75
  4. Step 4: Simplify right side
    105,813.67x = 8,917,062,859.17
  5. Step 5: Solve for x
    x = 8,917,062,859.17/105,813.67
  6. Step 6: Final answer
    x = 84,271.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.