Home / 128,116.04-192,291.23-64,979.74

Finding the Fourth Proportional to 128,116.04, 192,291.23 and 64,979.74

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Solution

The fourth proportional to 128,116.04, 192,291.23 and 64,979.74 is: 97,529.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,116.04 : 192,291.23 = 64,979.74 : x
  2. Step 2: Convert to fraction form
    128,116.04/192,291.23 = 64,979.74/x
  3. Step 3: Cross multiply
    128,116.04x = 192,291.23 × 64,979.74
  4. Step 4: Simplify right side
    128,116.04x = 12,495,034,129.68
  5. Step 5: Solve for x
    x = 12,495,034,129.68/128,116.04
  6. Step 6: Final answer
    x = 97,529.04

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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.