Home / 147,854.45-204,038.96-79,871.40

Finding the Fourth Proportional to 147,854.45, 204,038.96 and 79,871.40

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Solution

The fourth proportional to 147,854.45, 204,038.96 and 79,871.40 is: 110,222.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,854.45 : 204,038.96 = 79,871.40 : x
  2. Step 2: Convert to fraction form
    147,854.45/204,038.96 = 79,871.40/x
  3. Step 3: Cross multiply
    147,854.45x = 204,038.96 × 79,871.40
  4. Step 4: Simplify right side
    147,854.45x = 16,296,876,990.39
  5. Step 5: Solve for x
    x = 16,296,876,990.39/147,854.45
  6. Step 6: Final answer
    x = 110,222.43

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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.