Home / 118,628.19-163,718.03-70,880.51

Finding the Fourth Proportional to 118,628.19, 163,718.03 and 70,880.51

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Solution

The fourth proportional to 118,628.19, 163,718.03 and 70,880.51 is: 97,821.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,628.19 : 163,718.03 = 70,880.51 : x
  2. Step 2: Convert to fraction form
    118,628.19/163,718.03 = 70,880.51/x
  3. Step 3: Cross multiply
    118,628.19x = 163,718.03 × 70,880.51
  4. Step 4: Simplify right side
    118,628.19x = 11,604,418,049.09
  5. Step 5: Solve for x
    x = 11,604,418,049.09/118,628.19
  6. Step 6: Final answer
    x = 97,821.76

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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.