Home / 111,628.50-154,047.39-61,330.74

Finding the Fourth Proportional to 111,628.50, 154,047.39 and 61,330.74

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Solution

The fourth proportional to 111,628.50, 154,047.39 and 61,330.74 is: 84,636.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,628.50 : 154,047.39 = 61,330.74 : x
  2. Step 2: Convert to fraction form
    111,628.50/154,047.39 = 61,330.74/x
  3. Step 3: Cross multiply
    111,628.50x = 154,047.39 × 61,330.74
  4. Step 4: Simplify right side
    111,628.50x = 9,447,840,423.77
  5. Step 5: Solve for x
    x = 9,447,840,423.77/111,628.50
  6. Step 6: Final answer
    x = 84,636.45

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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.