Home / 130,631.93-180,279.19-73,289.41

Finding the Fourth Proportional to 130,631.93, 180,279.19 and 73,289.41

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Solution

The fourth proportional to 130,631.93, 180,279.19 and 73,289.41 is: 101,143.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,631.93 : 180,279.19 = 73,289.41 : x
  2. Step 2: Convert to fraction form
    130,631.93/180,279.19 = 73,289.41/x
  3. Step 3: Cross multiply
    130,631.93x = 180,279.19 × 73,289.41
  4. Step 4: Simplify right side
    130,631.93x = 13,212,555,111.29
  5. Step 5: Solve for x
    x = 13,212,555,111.29/130,631.93
  6. Step 6: Final answer
    x = 101,143.38

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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.