Home / 105,140.04-157,709.25-26,253.74

Finding the Fourth Proportional to 105,140.04, 157,709.25 and 26,253.74

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Solution

The fourth proportional to 105,140.04, 157,709.25 and 26,253.74 is: 39,380.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,140.04 : 157,709.25 = 26,253.74 : x
  2. Step 2: Convert to fraction form
    105,140.04/157,709.25 = 26,253.74/x
  3. Step 3: Cross multiply
    105,140.04x = 157,709.25 × 26,253.74
  4. Step 4: Simplify right side
    105,140.04x = 4,140,456,856.55
  5. Step 5: Solve for x
    x = 4,140,456,856.55/105,140.04
  6. Step 6: Final answer
    x = 39,380.40

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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.