Home / 157,126.16-216,833.70-85,506.17

Finding the Fourth Proportional to 157,126.16, 216,833.70 and 85,506.17

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Solution

The fourth proportional to 157,126.16, 216,833.70 and 85,506.17 is: 117,998.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,126.16 : 216,833.70 = 85,506.17 : x
  2. Step 2: Convert to fraction form
    157,126.16/216,833.70 = 85,506.17/x
  3. Step 3: Cross multiply
    157,126.16x = 216,833.70 × 85,506.17
  4. Step 4: Simplify right side
    157,126.16x = 18,540,618,129.76
  5. Step 5: Solve for x
    x = 18,540,618,129.76/157,126.16
  6. Step 6: Final answer
    x = 117,998.29

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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.