Home / 134,015.80-184,928.16-77,445.40

Finding the Fourth Proportional to 134,015.80, 184,928.16 and 77,445.40

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Solution

The fourth proportional to 134,015.80, 184,928.16 and 77,445.40 is: 106,866.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,015.80 : 184,928.16 = 77,445.40 : x
  2. Step 2: Convert to fraction form
    134,015.80/184,928.16 = 77,445.40/x
  3. Step 3: Cross multiply
    134,015.80x = 184,928.16 × 77,445.40
  4. Step 4: Simplify right side
    134,015.80x = 14,321,835,322.46
  5. Step 5: Solve for x
    x = 14,321,835,322.46/134,015.80
  6. Step 6: Final answer
    x = 106,866.77

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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.