Home / 157,712.09-235,361.21-140,883.12

Finding the Fourth Proportional to 157,712.09, 235,361.21 and 140,883.12

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Solution

The fourth proportional to 157,712.09, 235,361.21 and 140,883.12 is: 210,246.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,712.09 : 235,361.21 = 140,883.12 : x
  2. Step 2: Convert to fraction form
    157,712.09/235,361.21 = 140,883.12/x
  3. Step 3: Cross multiply
    157,712.09x = 235,361.21 × 140,883.12
  4. Step 4: Simplify right side
    157,712.09x = 33,158,420,887.36
  5. Step 5: Solve for x
    x = 33,158,420,887.36/157,712.09
  6. Step 6: Final answer
    x = 210,246.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.