Home / 130,553.19-180,147.24-79,547.38

Finding the Fourth Proportional to 130,553.19, 180,147.24 and 79,547.38

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Solution

The fourth proportional to 130,553.19, 180,147.24 and 79,547.38 is: 109,765.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,553.19 : 180,147.24 = 79,547.38 : x
  2. Step 2: Convert to fraction form
    130,553.19/180,147.24 = 79,547.38/x
  3. Step 3: Cross multiply
    130,553.19x = 180,147.24 × 79,547.38
  4. Step 4: Simplify right side
    130,553.19x = 14,330,240,956.23
  5. Step 5: Solve for x
    x = 14,330,240,956.23/130,553.19
  6. Step 6: Final answer
    x = 109,765.54

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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.