Home / 140,070.91-193,296.61-76,407.34

Finding the Fourth Proportional to 140,070.91, 193,296.61 and 76,407.34

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Solution

The fourth proportional to 140,070.91, 193,296.61 and 76,407.34 is: 105,441.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,070.91 : 193,296.61 = 76,407.34 : x
  2. Step 2: Convert to fraction form
    140,070.91/193,296.61 = 76,407.34/x
  3. Step 3: Cross multiply
    140,070.91x = 193,296.61 × 76,407.34
  4. Step 4: Simplify right side
    140,070.91x = 14,769,279,801.12
  5. Step 5: Solve for x
    x = 14,769,279,801.12/140,070.91
  6. Step 6: Final answer
    x = 105,441.45

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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.