Home / 136,983.80-205,329.90-52,711.40

Finding the Fourth Proportional to 136,983.80, 205,329.90 and 52,711.40

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Solution

The fourth proportional to 136,983.80, 205,329.90 and 52,711.40 is: 79,011.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,983.80 : 205,329.90 = 52,711.40 : x
  2. Step 2: Convert to fraction form
    136,983.80/205,329.90 = 52,711.40/x
  3. Step 3: Cross multiply
    136,983.80x = 205,329.90 × 52,711.40
  4. Step 4: Simplify right side
    136,983.80x = 10,823,226,490.86
  5. Step 5: Solve for x
    x = 10,823,226,490.86/136,983.80
  6. Step 6: Final answer
    x = 79,011.00

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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.