Home / 130,042.13-179,472.74-73,457.15

Finding the Fourth Proportional to 130,042.13, 179,472.74 and 73,457.15

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Solution

The fourth proportional to 130,042.13, 179,472.74 and 73,457.15 is: 101,379.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,042.13 : 179,472.74 = 73,457.15 : x
  2. Step 2: Convert to fraction form
    130,042.13/179,472.74 = 73,457.15/x
  3. Step 3: Cross multiply
    130,042.13x = 179,472.74 × 73,457.15
  4. Step 4: Simplify right side
    130,042.13x = 13,183,554,718.44
  5. Step 5: Solve for x
    x = 13,183,554,718.44/130,042.13
  6. Step 6: Final answer
    x = 101,379.11

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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.