Home / 130,820.30-180,533.90-73,472.03

Finding the Fourth Proportional to 130,820.30, 180,533.90 and 73,472.03

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Solution

The fourth proportional to 130,820.30, 180,533.90 and 73,472.03 is: 101,392.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,820.30 : 180,533.90 = 73,472.03 : x
  2. Step 2: Convert to fraction form
    130,820.30/180,533.90 = 73,472.03/x
  3. Step 3: Cross multiply
    130,820.30x = 180,533.90 × 73,472.03
  4. Step 4: Simplify right side
    130,820.30x = 13,264,192,116.82
  5. Step 5: Solve for x
    x = 13,264,192,116.82/130,820.30
  6. Step 6: Final answer
    x = 101,392.46

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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.