Home / 115,298.15-172,980.71-47,817.81

Finding the Fourth Proportional to 115,298.15, 172,980.71 and 47,817.81

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Solution

The fourth proportional to 115,298.15, 172,980.71 and 47,817.81 is: 71,740.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,298.15 : 172,980.71 = 47,817.81 : x
  2. Step 2: Convert to fraction form
    115,298.15/172,980.71 = 47,817.81/x
  3. Step 3: Cross multiply
    115,298.15x = 172,980.71 × 47,817.81
  4. Step 4: Simplify right side
    115,298.15x = 8,271,558,933.65
  5. Step 5: Solve for x
    x = 8,271,558,933.65/115,298.15
  6. Step 6: Final answer
    x = 71,740.60

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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.