Home / 112,157.56-168,272.79-74,869.21

Finding the Fourth Proportional to 112,157.56, 168,272.79 and 74,869.21

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Solution

The fourth proportional to 112,157.56, 168,272.79 and 74,869.21 is: 112,328.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,157.56 : 168,272.79 = 74,869.21 : x
  2. Step 2: Convert to fraction form
    112,157.56/168,272.79 = 74,869.21/x
  3. Step 3: Cross multiply
    112,157.56x = 168,272.79 × 74,869.21
  4. Step 4: Simplify right side
    112,157.56x = 12,598,450,851.80
  5. Step 5: Solve for x
    x = 12,598,450,851.80/112,157.56
  6. Step 6: Final answer
    x = 112,328.15

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1.5x scale

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.