Home / 102,803.80-141,862.68-57,485.52

Finding the Fourth Proportional to 102,803.80, 141,862.68 and 57,485.52

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Solution

The fourth proportional to 102,803.80, 141,862.68 and 57,485.52 is: 79,326.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,803.80 : 141,862.68 = 57,485.52 : x
  2. Step 2: Convert to fraction form
    102,803.80/141,862.68 = 57,485.52/x
  3. Step 3: Cross multiply
    102,803.80x = 141,862.68 × 57,485.52
  4. Step 4: Simplify right side
    102,803.80x = 8,155,049,928.39
  5. Step 5: Solve for x
    x = 8,155,049,928.39/102,803.80
  6. Step 6: Final answer
    x = 79,326.35

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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.