Home / 112,376.94-155,073.31-61,379.34

Finding the Fourth Proportional to 112,376.94, 155,073.31 and 61,379.34

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Solution

The fourth proportional to 112,376.94, 155,073.31 and 61,379.34 is: 84,699.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,376.94 : 155,073.31 = 61,379.34 : x
  2. Step 2: Convert to fraction form
    112,376.94/155,073.31 = 61,379.34/x
  3. Step 3: Cross multiply
    112,376.94x = 155,073.31 × 61,379.34
  4. Step 4: Simplify right side
    112,376.94x = 9,518,297,419.42
  5. Step 5: Solve for x
    x = 9,518,297,419.42/112,376.94
  6. Step 6: Final answer
    x = 84,699.74

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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.