Home / 112,106.75-154,619.84-71,824.29

Finding the Fourth Proportional to 112,106.75, 154,619.84 and 71,824.29

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Solution

The fourth proportional to 112,106.75, 154,619.84 and 71,824.29 is: 99,061.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,106.75 : 154,619.84 = 71,824.29 : x
  2. Step 2: Convert to fraction form
    112,106.75/154,619.84 = 71,824.29/x
  3. Step 3: Cross multiply
    112,106.75x = 154,619.84 × 71,824.29
  4. Step 4: Simplify right side
    112,106.75x = 11,105,459,423.64
  5. Step 5: Solve for x
    x = 11,105,459,423.64/112,106.75
  6. Step 6: Final answer
    x = 99,061.47

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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.