Home / 93,166.76-128,650.04-90,154.05

Finding the Fourth Proportional to 93,166.76, 128,650.04 and 90,154.05

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Solution

The fourth proportional to 93,166.76, 128,650.04 and 90,154.05 is: 124,489.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,166.76 : 128,650.04 = 90,154.05 : x
  2. Step 2: Convert to fraction form
    93,166.76/128,650.04 = 90,154.05/x
  3. Step 3: Cross multiply
    93,166.76x = 128,650.04 × 90,154.05
  4. Step 4: Simplify right side
    93,166.76x = 11,598,321,930.29
  5. Step 5: Solve for x
    x = 11,598,321,930.29/93,166.76
  6. Step 6: Final answer
    x = 124,489.92

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1.5x scale

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.