Home / 156,948.30-235,422.45-78,216.30

Finding the Fourth Proportional to 156,948.30, 235,422.45 and 78,216.30

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Solution

The fourth proportional to 156,948.30, 235,422.45 and 78,216.30 is: 117,324.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,948.30 : 235,422.45 = 78,216.30 : x
  2. Step 2: Convert to fraction form
    156,948.30/235,422.45 = 78,216.30/x
  3. Step 3: Cross multiply
    156,948.30x = 235,422.45 × 78,216.30
  4. Step 4: Simplify right side
    156,948.30x = 18,413,872,975.94
  5. Step 5: Solve for x
    x = 18,413,872,975.94/156,948.30
  6. Step 6: Final answer
    x = 117,324.45

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1.5x scale

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.