Home / 124,552.16-172,069.20-81,633.50

Finding the Fourth Proportional to 124,552.16, 172,069.20 and 81,633.50

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Solution

The fourth proportional to 124,552.16, 172,069.20 and 81,633.50 is: 112,776.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,552.16 : 172,069.20 = 81,633.50 : x
  2. Step 2: Convert to fraction form
    124,552.16/172,069.20 = 81,633.50/x
  3. Step 3: Cross multiply
    124,552.16x = 172,069.20 × 81,633.50
  4. Step 4: Simplify right side
    124,552.16x = 14,046,611,038.20
  5. Step 5: Solve for x
    x = 14,046,611,038.20/124,552.16
  6. Step 6: Final answer
    x = 112,776.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.