Home / 130,125.57-195,189.72-45,870.03

Finding the Fourth Proportional to 130,125.57, 195,189.72 and 45,870.03

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Solution

The fourth proportional to 130,125.57, 195,189.72 and 45,870.03 is: 68,805.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,125.57 : 195,189.72 = 45,870.03 : x
  2. Step 2: Convert to fraction form
    130,125.57/195,189.72 = 45,870.03/x
  3. Step 3: Cross multiply
    130,125.57x = 195,189.72 × 45,870.03
  4. Step 4: Simplify right side
    130,125.57x = 8,953,358,312.09
  5. Step 5: Solve for x
    x = 8,953,358,312.09/130,125.57
  6. Step 6: Final answer
    x = 68,805.53

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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.