Home / 134,559.80-201,666.90-81,913.40

Finding the Fourth Proportional to 134,559.80, 201,666.90 and 81,913.40

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Solution

The fourth proportional to 134,559.80, 201,666.90 and 81,913.40 is: 122,764.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,559.80 : 201,666.90 = 81,913.40 : x
  2. Step 2: Convert to fraction form
    134,559.80/201,666.90 = 81,913.40/x
  3. Step 3: Cross multiply
    134,559.80x = 201,666.90 × 81,913.40
  4. Step 4: Simplify right side
    134,559.80x = 16,519,221,446.46
  5. Step 5: Solve for x
    x = 16,519,221,446.46/134,559.80
  6. Step 6: Final answer
    x = 122,764.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.