Home / 125,276.28-172,881.18-68,688.60

Finding the Fourth Proportional to 125,276.28, 172,881.18 and 68,688.60

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Solution

The fourth proportional to 125,276.28, 172,881.18 and 68,688.60 is: 94,790.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,276.28 : 172,881.18 = 68,688.60 : x
  2. Step 2: Convert to fraction form
    125,276.28/172,881.18 = 68,688.60/x
  3. Step 3: Cross multiply
    125,276.28x = 172,881.18 × 68,688.60
  4. Step 4: Simplify right side
    125,276.28x = 11,874,966,220.55
  5. Step 5: Solve for x
    x = 11,874,966,220.55/125,276.28
  6. Step 6: Final answer
    x = 94,790.22

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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.