Home / 118,121.16-163,046.70-70,389.48

Finding the Fourth Proportional to 118,121.16, 163,046.70 and 70,389.48

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Solution

The fourth proportional to 118,121.16, 163,046.70 and 70,389.48 is: 97,161.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,121.16 : 163,046.70 = 70,389.48 : x
  2. Step 2: Convert to fraction form
    118,121.16/163,046.70 = 70,389.48/x
  3. Step 3: Cross multiply
    118,121.16x = 163,046.70 × 70,389.48
  4. Step 4: Simplify right side
    118,121.16x = 11,476,772,428.72
  5. Step 5: Solve for x
    x = 11,476,772,428.72/118,121.16
  6. Step 6: Final answer
    x = 97,161.02

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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.