Home / 130,521.36-180,119.58-73,932.72

Finding the Fourth Proportional to 130,521.36, 180,119.58 and 73,932.72

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Solution

The fourth proportional to 130,521.36, 180,119.58 and 73,932.72 is: 102,027.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,521.36 : 180,119.58 = 73,932.72 : x
  2. Step 2: Convert to fraction form
    130,521.36/180,119.58 = 73,932.72/x
  3. Step 3: Cross multiply
    130,521.36x = 180,119.58 × 73,932.72
  4. Step 4: Simplify right side
    130,521.36x = 13,316,730,474.66
  5. Step 5: Solve for x
    x = 13,316,730,474.66/130,521.36
  6. Step 6: Final answer
    x = 102,027.21

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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.