Home / 134,841.53-186,002.75-86,426.21

Finding the Fourth Proportional to 134,841.53, 186,002.75 and 86,426.21

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Solution

The fourth proportional to 134,841.53, 186,002.75 and 86,426.21 is: 119,217.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,841.53 : 186,002.75 = 86,426.21 : x
  2. Step 2: Convert to fraction form
    134,841.53/186,002.75 = 86,426.21/x
  3. Step 3: Cross multiply
    134,841.53x = 186,002.75 × 86,426.21
  4. Step 4: Simplify right side
    134,841.53x = 16,075,511,369.93
  5. Step 5: Solve for x
    x = 16,075,511,369.93/134,841.53
  6. Step 6: Final answer
    x = 119,217.81

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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.