Home / 172,120.95-258,181.63-53,792.91

Finding the Fourth Proportional to 172,120.95, 258,181.63 and 53,792.91

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Solution

The fourth proportional to 172,120.95, 258,181.63 and 53,792.91 is: 80,689.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,120.95 : 258,181.63 = 53,792.91 : x
  2. Step 2: Convert to fraction form
    172,120.95/258,181.63 = 53,792.91/x
  3. Step 3: Cross multiply
    172,120.95x = 258,181.63 × 53,792.91
  4. Step 4: Simplify right side
    172,120.95x = 13,888,341,051.76
  5. Step 5: Solve for x
    x = 13,888,341,051.76/172,120.95
  6. Step 6: Final answer
    x = 80,689.43

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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.