Home / 156,781.80-235,172.70-94,420.20

Finding the Fourth Proportional to 156,781.80, 235,172.70 and 94,420.20

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Solution

The fourth proportional to 156,781.80, 235,172.70 and 94,420.20 is: 141,630.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,781.80 : 235,172.70 = 94,420.20 : x
  2. Step 2: Convert to fraction form
    156,781.80/235,172.70 = 94,420.20/x
  3. Step 3: Cross multiply
    156,781.80x = 235,172.70 × 94,420.20
  4. Step 4: Simplify right side
    156,781.80x = 22,205,053,368.54
  5. Step 5: Solve for x
    x = 22,205,053,368.54/156,781.80
  6. Step 6: Final answer
    x = 141,630.30

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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.