Home / 114,485.12-157,856.64-107,400.32

Finding the Fourth Proportional to 114,485.12, 157,856.64 and 107,400.32

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Solution

The fourth proportional to 114,485.12, 157,856.64 and 107,400.32 is: 148,087.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,485.12 : 157,856.64 = 107,400.32 : x
  2. Step 2: Convert to fraction form
    114,485.12/157,856.64 = 107,400.32/x
  3. Step 3: Cross multiply
    114,485.12x = 157,856.64 × 107,400.32
  4. Step 4: Simplify right side
    114,485.12x = 16,953,853,650.12
  5. Step 5: Solve for x
    x = 16,953,853,650.12/114,485.12
  6. Step 6: Final answer
    x = 148,087.84

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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.