Home / 129,746.19-179,049.92-70,130.19

Finding the Fourth Proportional to 129,746.19, 179,049.92 and 70,130.19

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Solution

The fourth proportional to 129,746.19, 179,049.92 and 70,130.19 is: 96,779.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,746.19 : 179,049.92 = 70,130.19 : x
  2. Step 2: Convert to fraction form
    129,746.19/179,049.92 = 70,130.19/x
  3. Step 3: Cross multiply
    129,746.19x = 179,049.92 × 70,130.19
  4. Step 4: Simplify right side
    129,746.19x = 12,556,804,558.43
  5. Step 5: Solve for x
    x = 12,556,804,558.43/129,746.19
  6. Step 6: Final answer
    x = 96,779.76

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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.