Home / 127,420.56-175,851-70,837.20

Finding the Fourth Proportional to 127,420.56, 175,851 and 70,837.20

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Solution

The fourth proportional to 127,420.56, 175,851 and 70,837.20 is: 97,761.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,420.56 : 175,851 = 70,837.20 : x
  2. Step 2: Convert to fraction form
    127,420.56/175,851 = 70,837.20/x
  3. Step 3: Cross multiply
    127,420.56x = 175,851 × 70,837.20
  4. Step 4: Simplify right side
    127,420.56x = 12,456,792,457.20
  5. Step 5: Solve for x
    x = 12,456,792,457.20/127,420.56
  6. Step 6: Final answer
    x = 97,761.24

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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.