Home / 112,193.74-154,816.59-61,889.50

Finding the Fourth Proportional to 112,193.74, 154,816.59 and 61,889.50

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Solution

The fourth proportional to 112,193.74, 154,816.59 and 61,889.50 is: 85,401.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,193.74 : 154,816.59 = 61,889.50 : x
  2. Step 2: Convert to fraction form
    112,193.74/154,816.59 = 61,889.50/x
  3. Step 3: Cross multiply
    112,193.74x = 154,816.59 × 61,889.50
  4. Step 4: Simplify right side
    112,193.74x = 9,581,521,346.81
  5. Step 5: Solve for x
    x = 9,581,521,346.81/112,193.74
  6. Step 6: Final answer
    x = 85,401.57

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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.