Home / 99,112.74-136,774.32-53,790.84

Finding the Fourth Proportional to 99,112.74, 136,774.32 and 53,790.84

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Solution

The fourth proportional to 99,112.74, 136,774.32 and 53,790.84 is: 74,230.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,112.74 : 136,774.32 = 53,790.84 : x
  2. Step 2: Convert to fraction form
    99,112.74/136,774.32 = 53,790.84/x
  3. Step 3: Cross multiply
    99,112.74x = 136,774.32 × 53,790.84
  4. Step 4: Simplify right side
    99,112.74x = 7,357,205,563.23
  5. Step 5: Solve for x
    x = 7,357,205,563.23/99,112.74
  6. Step 6: Final answer
    x = 74,230.67

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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.