Home / 118,343.84-163,313.39-64,628.69

Finding the Fourth Proportional to 118,343.84, 163,313.39 and 64,628.69

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Solution

The fourth proportional to 118,343.84, 163,313.39 and 64,628.69 is: 89,186.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,343.84 : 163,313.39 = 64,628.69 : x
  2. Step 2: Convert to fraction form
    118,343.84/163,313.39 = 64,628.69/x
  3. Step 3: Cross multiply
    118,343.84x = 163,313.39 × 64,628.69
  4. Step 4: Simplify right side
    118,343.84x = 10,554,729,800.16
  5. Step 5: Solve for x
    x = 10,554,729,800.16/118,343.84
  6. Step 6: Final answer
    x = 89,186.98

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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.