Home / 172,487.38-258,712.89-46,140.39

Finding the Fourth Proportional to 172,487.38, 258,712.89 and 46,140.39

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Solution

The fourth proportional to 172,487.38, 258,712.89 and 46,140.39 is: 69,205.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,487.38 : 258,712.89 = 46,140.39 : x
  2. Step 2: Convert to fraction form
    172,487.38/258,712.89 = 46,140.39/x
  3. Step 3: Cross multiply
    172,487.38x = 258,712.89 × 46,140.39
  4. Step 4: Simplify right side
    172,487.38x = 11,937,113,642.63
  5. Step 5: Solve for x
    x = 11,937,113,642.63/172,487.38
  6. Step 6: Final answer
    x = 69,205.72

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1.5x scale

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.