Home / 105,554.08-145,659.22-57,798.20

Finding the Fourth Proportional to 105,554.08, 145,659.22 and 57,798.20

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Solution

The fourth proportional to 105,554.08, 145,659.22 and 57,798.20 is: 79,758.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,554.08 : 145,659.22 = 57,798.20 : x
  2. Step 2: Convert to fraction form
    105,554.08/145,659.22 = 57,798.20/x
  3. Step 3: Cross multiply
    105,554.08x = 145,659.22 × 57,798.20
  4. Step 4: Simplify right side
    105,554.08x = 8,418,840,729.40
  5. Step 5: Solve for x
    x = 8,418,840,729.40/105,554.08
  6. Step 6: Final answer
    x = 79,758.55

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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.