Home / 153,157.36-211,359-86,087.92

Finding the Fourth Proportional to 153,157.36, 211,359 and 86,087.92

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Solution

The fourth proportional to 153,157.36, 211,359 and 86,087.92 is: 118,802.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,157.36 : 211,359 = 86,087.92 : x
  2. Step 2: Convert to fraction form
    153,157.36/211,359 = 86,087.92/x
  3. Step 3: Cross multiply
    153,157.36x = 211,359 × 86,087.92
  4. Step 4: Simplify right side
    153,157.36x = 18,195,456,683.28
  5. Step 5: Solve for x
    x = 18,195,456,683.28/153,157.36
  6. Step 6: Final answer
    x = 118,802.37

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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.