Home / 172,206.63-258,263.10-108,931.77

Finding the Fourth Proportional to 172,206.63, 258,263.10 and 108,931.77

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Solution

The fourth proportional to 172,206.63, 258,263.10 and 108,931.77 is: 163,368.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,206.63 : 258,263.10 = 108,931.77 : x
  2. Step 2: Convert to fraction form
    172,206.63/258,263.10 = 108,931.77/x
  3. Step 3: Cross multiply
    172,206.63x = 258,263.10 × 108,931.77
  4. Step 4: Simplify right side
    172,206.63x = 28,133,056,608.69
  5. Step 5: Solve for x
    x = 28,133,056,608.69/172,206.63
  6. Step 6: Final answer
    x = 163,368.02

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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.