Home / 145,941.18-218,911.78-112,709.72

Finding the Fourth Proportional to 145,941.18, 218,911.78 and 112,709.72

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Solution

The fourth proportional to 145,941.18, 218,911.78 and 112,709.72 is: 169,064.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,941.18 : 218,911.78 = 112,709.72 : x
  2. Step 2: Convert to fraction form
    145,941.18/218,911.78 = 112,709.72/x
  3. Step 3: Cross multiply
    145,941.18x = 218,911.78 × 112,709.72
  4. Step 4: Simplify right side
    145,941.18x = 24,673,485,428.50
  5. Step 5: Solve for x
    x = 24,673,485,428.50/145,941.18
  6. Step 6: Final answer
    x = 169,064.59

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1.5x scale

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.