Home / 158,401.69-218,592.51-85,803.19

Finding the Fourth Proportional to 158,401.69, 218,592.51 and 85,803.19

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Solution

The fourth proportional to 158,401.69, 218,592.51 and 85,803.19 is: 118,407.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,401.69 : 218,592.51 = 85,803.19 : x
  2. Step 2: Convert to fraction form
    158,401.69/218,592.51 = 85,803.19/x
  3. Step 3: Cross multiply
    158,401.69x = 218,592.51 × 85,803.19
  4. Step 4: Simplify right side
    158,401.69x = 18,755,934,668.11
  5. Step 5: Solve for x
    x = 18,755,934,668.11/158,401.69
  6. Step 6: Final answer
    x = 118,407.42

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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.