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Finding the Fourth Proportional to 130,673.98, 180,344.64 and 73,322.74

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Solution

The fourth proportional to 130,673.98, 180,344.64 and 73,322.74 is: 101,193.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,673.98 : 180,344.64 = 73,322.74 : x
  2. Step 2: Convert to fraction form
    130,673.98/180,344.64 = 73,322.74/x
  3. Step 3: Cross multiply
    130,673.98x = 180,344.64 × 73,322.74
  4. Step 4: Simplify right side
    130,673.98x = 13,223,363,149.11
  5. Step 5: Solve for x
    x = 13,223,363,149.11/130,673.98
  6. Step 6: Final answer
    x = 101,193.54

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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.