Home / 157,030.36-216,691.20-85,408.83

Finding the Fourth Proportional to 157,030.36, 216,691.20 and 85,408.83

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Solution

The fourth proportional to 157,030.36, 216,691.20 and 85,408.83 is: 117,858.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,030.36 : 216,691.20 = 85,408.83 : x
  2. Step 2: Convert to fraction form
    157,030.36/216,691.20 = 85,408.83/x
  3. Step 3: Cross multiply
    157,030.36x = 216,691.20 × 85,408.83
  4. Step 4: Simplify right side
    157,030.36x = 18,507,341,863.30
  5. Step 5: Solve for x
    x = 18,507,341,863.30/157,030.36
  6. Step 6: Final answer
    x = 117,858.37

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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.