Home / 113,898.12-157,155.42-66,126.84

Finding the Fourth Proportional to 113,898.12, 157,155.42 and 66,126.84

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Solution

The fourth proportional to 113,898.12, 157,155.42 and 66,126.84 is: 91,241.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,898.12 : 157,155.42 = 66,126.84 : x
  2. Step 2: Convert to fraction form
    113,898.12/157,155.42 = 66,126.84/x
  3. Step 3: Cross multiply
    113,898.12x = 157,155.42 × 66,126.84
  4. Step 4: Simplify right side
    113,898.12x = 10,392,191,313.47
  5. Step 5: Solve for x
    x = 10,392,191,313.47/113,898.12
  6. Step 6: Final answer
    x = 91,241.11

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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.