Home / 156,746.40-235,119.60-133,126.80

Finding the Fourth Proportional to 156,746.40, 235,119.60 and 133,126.80

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Solution

The fourth proportional to 156,746.40, 235,119.60 and 133,126.80 is: 199,690.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,746.40 : 235,119.60 = 133,126.80 : x
  2. Step 2: Convert to fraction form
    156,746.40/235,119.60 = 133,126.80/x
  3. Step 3: Cross multiply
    156,746.40x = 235,119.60 × 133,126.80
  4. Step 4: Simplify right side
    156,746.40x = 31,300,719,965.28
  5. Step 5: Solve for x
    x = 31,300,719,965.28/156,746.40
  6. Step 6: Final answer
    x = 199,690.20

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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.