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Finding the Fourth Proportional to 130,803.59, 180,512.42 and 73,447.49

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Solution

The fourth proportional to 130,803.59, 180,512.42 and 73,447.49 is: 101,359.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,803.59 : 180,512.42 = 73,447.49 : x
  2. Step 2: Convert to fraction form
    130,803.59/180,512.42 = 73,447.49/x
  3. Step 3: Cross multiply
    130,803.59x = 180,512.42 × 73,447.49
  4. Step 4: Simplify right side
    130,803.59x = 13,258,184,246.87
  5. Step 5: Solve for x
    x = 13,258,184,246.87/130,803.59
  6. Step 6: Final answer
    x = 101,359.48

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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.