Home / 156,915.15-235,372.73-51,720.45

Finding the Fourth Proportional to 156,915.15, 235,372.73 and 51,720.45

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Solution

The fourth proportional to 156,915.15, 235,372.73 and 51,720.45 is: 77,580.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,915.15 : 235,372.73 = 51,720.45 : x
  2. Step 2: Convert to fraction form
    156,915.15/235,372.73 = 51,720.45/x
  3. Step 3: Cross multiply
    156,915.15x = 235,372.73 × 51,720.45
  4. Step 4: Simplify right side
    156,915.15x = 12,173,583,254.73
  5. Step 5: Solve for x
    x = 12,173,583,254.73/156,915.15
  6. Step 6: Final answer
    x = 77,580.68

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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.