Home / 105,887.21-146,126.70-58,140.74

Finding the Fourth Proportional to 105,887.21, 146,126.70 and 58,140.74

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Solution

The fourth proportional to 105,887.21, 146,126.70 and 58,140.74 is: 80,235.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,887.21 : 146,126.70 = 58,140.74 : x
  2. Step 2: Convert to fraction form
    105,887.21/146,126.70 = 58,140.74/x
  3. Step 3: Cross multiply
    105,887.21x = 146,126.70 × 58,140.74
  4. Step 4: Simplify right side
    105,887.21x = 8,495,914,471.76
  5. Step 5: Solve for x
    x = 8,495,914,471.76/105,887.21
  6. Step 6: Final answer
    x = 80,235.51

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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.