Home / 157,206.17-216,949.05-85,587.41

Finding the Fourth Proportional to 157,206.17, 216,949.05 and 85,587.41

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Solution

The fourth proportional to 157,206.17, 216,949.05 and 85,587.41 is: 118,113.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,206.17 : 216,949.05 = 85,587.41 : x
  2. Step 2: Convert to fraction form
    157,206.17/216,949.05 = 85,587.41/x
  3. Step 3: Cross multiply
    157,206.17x = 216,949.05 × 85,587.41
  4. Step 4: Simplify right side
    157,206.17x = 18,568,107,291.46
  5. Step 5: Solve for x
    x = 18,568,107,291.46/157,206.17
  6. Step 6: Final answer
    x = 118,113.09

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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.