Home / 130,261.28-179,764.64-73,671.52

Finding the Fourth Proportional to 130,261.28, 179,764.64 and 73,671.52

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Solution

The fourth proportional to 130,261.28, 179,764.64 and 73,671.52 is: 101,669.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,261.28 : 179,764.64 = 73,671.52 : x
  2. Step 2: Convert to fraction form
    130,261.28/179,764.64 = 73,671.52/x
  3. Step 3: Cross multiply
    130,261.28x = 179,764.64 × 73,671.52
  4. Step 4: Simplify right side
    130,261.28x = 13,243,534,271.05
  5. Step 5: Solve for x
    x = 13,243,534,271.05/130,261.28
  6. Step 6: Final answer
    x = 101,669.00

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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.