Home / 140,145.48-193,401.44-76,484.64

Finding the Fourth Proportional to 140,145.48, 193,401.44 and 76,484.64

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Solution

The fourth proportional to 140,145.48, 193,401.44 and 76,484.64 is: 105,549.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,145.48 : 193,401.44 = 76,484.64 : x
  2. Step 2: Convert to fraction form
    140,145.48/193,401.44 = 76,484.64/x
  3. Step 3: Cross multiply
    140,145.48x = 193,401.44 × 76,484.64
  4. Step 4: Simplify right side
    140,145.48x = 14,792,239,513.88
  5. Step 5: Solve for x
    x = 14,792,239,513.88/140,145.48
  6. Step 6: Final answer
    x = 105,549.17

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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.