Home / 130,523.10-195,525.45-77,775.90

Finding the Fourth Proportional to 130,523.10, 195,525.45 and 77,775.90

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Solution

The fourth proportional to 130,523.10, 195,525.45 and 77,775.90 is: 116,509.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,523.10 : 195,525.45 = 77,775.90 : x
  2. Step 2: Convert to fraction form
    130,523.10/195,525.45 = 77,775.90/x
  3. Step 3: Cross multiply
    130,523.10x = 195,525.45 × 77,775.90
  4. Step 4: Simplify right side
    130,523.10x = 15,207,167,846.66
  5. Step 5: Solve for x
    x = 15,207,167,846.66/130,523.10
  6. Step 6: Final answer
    x = 116,509.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.