Home / 114,913.80-172,370.70-31,807.80

Finding the Fourth Proportional to 114,913.80, 172,370.70 and 31,807.80

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Solution

The fourth proportional to 114,913.80, 172,370.70 and 31,807.80 is: 47,711.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,913.80 : 172,370.70 = 31,807.80 : x
  2. Step 2: Convert to fraction form
    114,913.80/172,370.70 = 31,807.80/x
  3. Step 3: Cross multiply
    114,913.80x = 172,370.70 × 31,807.80
  4. Step 4: Simplify right side
    114,913.80x = 5,482,732,751.46
  5. Step 5: Solve for x
    x = 5,482,732,751.46/114,913.80
  6. Step 6: Final answer
    x = 47,711.70

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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.