Home / 130,399.16-179,955.12-73,809.32

Finding the Fourth Proportional to 130,399.16, 179,955.12 and 73,809.32

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Solution

The fourth proportional to 130,399.16, 179,955.12 and 73,809.32 is: 101,859.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,399.16 : 179,955.12 = 73,809.32 : x
  2. Step 2: Convert to fraction form
    130,399.16/179,955.12 = 73,809.32/x
  3. Step 3: Cross multiply
    130,399.16x = 179,955.12 × 73,809.32
  4. Step 4: Simplify right side
    130,399.16x = 13,282,365,037.72
  5. Step 5: Solve for x
    x = 13,282,365,037.72/130,399.16
  6. Step 6: Final answer
    x = 101,859.28

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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.