Home / 112,087.40-154,678.50-61,100.60

Finding the Fourth Proportional to 112,087.40, 154,678.50 and 61,100.60

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Solution

The fourth proportional to 112,087.40, 154,678.50 and 61,100.60 is: 84,317.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,087.40 : 154,678.50 = 61,100.60 : x
  2. Step 2: Convert to fraction form
    112,087.40/154,678.50 = 61,100.60/x
  3. Step 3: Cross multiply
    112,087.40x = 154,678.50 × 61,100.60
  4. Step 4: Simplify right side
    112,087.40x = 9,450,949,157.10
  5. Step 5: Solve for x
    x = 9,450,949,157.10/112,087.40
  6. Step 6: Final answer
    x = 84,317.68

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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.