Home / 156,938.70-235,408.05-83,210.70

Finding the Fourth Proportional to 156,938.70, 235,408.05 and 83,210.70

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Solution

The fourth proportional to 156,938.70, 235,408.05 and 83,210.70 is: 124,816.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,938.70 : 235,408.05 = 83,210.70 : x
  2. Step 2: Convert to fraction form
    156,938.70/235,408.05 = 83,210.70/x
  3. Step 3: Cross multiply
    156,938.70x = 235,408.05 × 83,210.70
  4. Step 4: Simplify right side
    156,938.70x = 19,588,468,626.14
  5. Step 5: Solve for x
    x = 19,588,468,626.14/156,938.70
  6. Step 6: Final answer
    x = 124,816.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.