Home / 130,493.28-180,074.70-73,905.06

Finding the Fourth Proportional to 130,493.28, 180,074.70 and 73,905.06

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Solution

The fourth proportional to 130,493.28, 180,074.70 and 73,905.06 is: 101,985.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,493.28 : 180,074.70 = 73,905.06 : x
  2. Step 2: Convert to fraction form
    130,493.28/180,074.70 = 73,905.06/x
  3. Step 3: Cross multiply
    130,493.28x = 180,074.70 × 73,905.06
  4. Step 4: Simplify right side
    130,493.28x = 13,308,431,507.98
  5. Step 5: Solve for x
    x = 13,308,431,507.98/130,493.28
  6. Step 6: Final answer
    x = 101,985.57

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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.