Home / 157,420.06-236,163.03-87,152.02

Finding the Fourth Proportional to 157,420.06, 236,163.03 and 87,152.02

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Solution

The fourth proportional to 157,420.06, 236,163.03 and 87,152.02 is: 130,746.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,420.06 : 236,163.03 = 87,152.02 : x
  2. Step 2: Convert to fraction form
    157,420.06/236,163.03 = 87,152.02/x
  3. Step 3: Cross multiply
    157,420.06x = 236,163.03 × 87,152.02
  4. Step 4: Simplify right side
    157,420.06x = 20,582,085,113.82
  5. Step 5: Solve for x
    x = 20,582,085,113.82/157,420.06
  6. Step 6: Final answer
    x = 130,746.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.