Home / 130,820.11-180,533.64-73,471.84

Finding the Fourth Proportional to 130,820.11, 180,533.64 and 73,471.84

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Solution

The fourth proportional to 130,820.11, 180,533.64 and 73,471.84 is: 101,392.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,820.11 : 180,533.64 = 73,471.84 : x
  2. Step 2: Convert to fraction form
    130,820.11/180,533.64 = 73,471.84/x
  3. Step 3: Cross multiply
    130,820.11x = 180,533.64 × 73,471.84
  4. Step 4: Simplify right side
    130,820.11x = 13,264,139,139.11
  5. Step 5: Solve for x
    x = 13,264,139,139.11/130,820.11
  6. Step 6: Final answer
    x = 101,392.20

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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.