Home / 115,616.16-159,568.56-70,308.36

Finding the Fourth Proportional to 115,616.16, 159,568.56 and 70,308.36

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Solution

The fourth proportional to 115,616.16, 159,568.56 and 70,308.36 is: 97,036.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,616.16 : 159,568.56 = 70,308.36 : x
  2. Step 2: Convert to fraction form
    115,616.16/159,568.56 = 70,308.36/x
  3. Step 3: Cross multiply
    115,616.16x = 159,568.56 × 70,308.36
  4. Step 4: Simplify right side
    115,616.16x = 11,219,003,761.16
  5. Step 5: Solve for x
    x = 11,219,003,761.16/115,616.16
  6. Step 6: Final answer
    x = 97,036.64

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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.