Home / 140,048.04-193,266.18-76,385.64

Finding the Fourth Proportional to 140,048.04, 193,266.18 and 76,385.64

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Solution

The fourth proportional to 140,048.04, 193,266.18 and 76,385.64 is: 105,412.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,048.04 : 193,266.18 = 76,385.64 : x
  2. Step 2: Convert to fraction form
    140,048.04/193,266.18 = 76,385.64/x
  3. Step 3: Cross multiply
    140,048.04x = 193,266.18 × 76,385.64
  4. Step 4: Simplify right side
    140,048.04x = 14,762,760,849.66
  5. Step 5: Solve for x
    x = 14,762,760,849.66/140,048.04
  6. Step 6: Final answer
    x = 105,412.12

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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.