Home / 130,536.02-180,143.38-73,947.40

Finding the Fourth Proportional to 130,536.02, 180,143.38 and 73,947.40

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Solution

The fourth proportional to 130,536.02, 180,143.38 and 73,947.40 is: 102,049.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,536.02 : 180,143.38 = 73,947.40 : x
  2. Step 2: Convert to fraction form
    130,536.02/180,143.38 = 73,947.40/x
  3. Step 3: Cross multiply
    130,536.02x = 180,143.38 × 73,947.40
  4. Step 4: Simplify right side
    130,536.02x = 13,321,134,578.21
  5. Step 5: Solve for x
    x = 13,321,134,578.21/130,536.02
  6. Step 6: Final answer
    x = 102,049.49

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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.