Home / 130,640.88-180,291.52-73,298.34

Finding the Fourth Proportional to 130,640.88, 180,291.52 and 73,298.34

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Solution

The fourth proportional to 130,640.88, 180,291.52 and 73,298.34 is: 101,155.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,640.88 : 180,291.52 = 73,298.34 : x
  2. Step 2: Convert to fraction form
    130,640.88/180,291.52 = 73,298.34/x
  3. Step 3: Cross multiply
    130,640.88x = 180,291.52 × 73,298.34
  4. Step 4: Simplify right side
    130,640.88x = 13,215,069,132.08
  5. Step 5: Solve for x
    x = 13,215,069,132.08/130,640.88
  6. Step 6: Final answer
    x = 101,155.70

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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.