Home / 105,429.98-145,492.08-57,682.64

Finding the Fourth Proportional to 105,429.98, 145,492.08 and 57,682.64

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Solution

The fourth proportional to 105,429.98, 145,492.08 and 57,682.64 is: 79,601.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,429.98 : 145,492.08 = 57,682.64 : x
  2. Step 2: Convert to fraction form
    105,429.98/145,492.08 = 57,682.64/x
  3. Step 3: Cross multiply
    105,429.98x = 145,492.08 × 57,682.64
  4. Step 4: Simplify right side
    105,429.98x = 8,392,367,273.49
  5. Step 5: Solve for x
    x = 8,392,367,273.49/105,429.98
  6. Step 6: Final answer
    x = 79,601.34

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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.