Home / 129,846.50-179,262.69-98,977.25

Finding the Fourth Proportional to 129,846.50, 179,262.69 and 98,977.25

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Solution

The fourth proportional to 129,846.50, 179,262.69 and 98,977.25 is: 136,645.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,846.50 : 179,262.69 = 98,977.25 : x
  2. Step 2: Convert to fraction form
    129,846.50/179,262.69 = 98,977.25/x
  3. Step 3: Cross multiply
    129,846.50x = 179,262.69 × 98,977.25
  4. Step 4: Simplify right side
    129,846.50x = 17,742,927,187.49
  5. Step 5: Solve for x
    x = 17,742,927,187.49/129,846.50
  6. Step 6: Final answer
    x = 136,645.41

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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.