Home / 156,874.70-235,312.05-83,146.70

Finding the Fourth Proportional to 156,874.70, 235,312.05 and 83,146.70

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Solution

The fourth proportional to 156,874.70, 235,312.05 and 83,146.70 is: 124,720.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,874.70 : 235,312.05 = 83,146.70 : x
  2. Step 2: Convert to fraction form
    156,874.70/235,312.05 = 83,146.70/x
  3. Step 3: Cross multiply
    156,874.70x = 235,312.05 × 83,146.70
  4. Step 4: Simplify right side
    156,874.70x = 19,565,420,427.74
  5. Step 5: Solve for x
    x = 19,565,420,427.74/156,874.70
  6. Step 6: Final answer
    x = 124,720.05

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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.