Home / 105,633.75-145,774.71-57,888.84

Finding the Fourth Proportional to 105,633.75, 145,774.71 and 57,888.84

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Solution

The fourth proportional to 105,633.75, 145,774.71 and 57,888.84 is: 79,886.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,633.75 : 145,774.71 = 57,888.84 : x
  2. Step 2: Convert to fraction form
    105,633.75/145,774.71 = 57,888.84/x
  3. Step 3: Cross multiply
    105,633.75x = 145,774.71 × 57,888.84
  4. Step 4: Simplify right side
    105,633.75x = 8,438,728,863.24
  5. Step 5: Solve for x
    x = 8,438,728,863.24/105,633.75
  6. Step 6: Final answer
    x = 79,886.67

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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.