Home / 136,129.10-187,849.26-75,697.50

Finding the Fourth Proportional to 136,129.10, 187,849.26 and 75,697.50

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Solution

The fourth proportional to 136,129.10, 187,849.26 and 75,697.50 is: 104,457.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,129.10 : 187,849.26 = 75,697.50 : x
  2. Step 2: Convert to fraction form
    136,129.10/187,849.26 = 75,697.50/x
  3. Step 3: Cross multiply
    136,129.10x = 187,849.26 × 75,697.50
  4. Step 4: Simplify right side
    136,129.10x = 14,219,719,358.85
  5. Step 5: Solve for x
    x = 14,219,719,358.85/136,129.10
  6. Step 6: Final answer
    x = 104,457.60

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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.