Home / 105,503.30-145,597.98-57,756.64

Finding the Fourth Proportional to 105,503.30, 145,597.98 and 57,756.64

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Solution

The fourth proportional to 105,503.30, 145,597.98 and 57,756.64 is: 79,706.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,503.30 : 145,597.98 = 57,756.64 : x
  2. Step 2: Convert to fraction form
    105,503.30/145,597.98 = 57,756.64/x
  3. Step 3: Cross multiply
    105,503.30x = 145,597.98 × 57,756.64
  4. Step 4: Simplify right side
    105,503.30x = 8,409,250,115.59
  5. Step 5: Solve for x
    x = 8,409,250,115.59/105,503.30
  6. Step 6: Final answer
    x = 79,706.04

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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.