Home / 157,199.04-216,933.76-85,578.88

Finding the Fourth Proportional to 157,199.04, 216,933.76 and 85,578.88

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Solution

The fourth proportional to 157,199.04, 216,933.76 and 85,578.88 is: 118,098.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,199.04 : 216,933.76 = 85,578.88 : x
  2. Step 2: Convert to fraction form
    157,199.04/216,933.76 = 85,578.88/x
  3. Step 3: Cross multiply
    157,199.04x = 216,933.76 × 85,578.88
  4. Step 4: Simplify right side
    157,199.04x = 18,564,948,214.99
  5. Step 5: Solve for x
    x = 18,564,948,214.99/157,199.04
  6. Step 6: Final answer
    x = 118,098.36

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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.