Home / 156,748.90-235,123.35-56,912.35

Finding the Fourth Proportional to 156,748.90, 235,123.35 and 56,912.35

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Solution

The fourth proportional to 156,748.90, 235,123.35 and 56,912.35 is: 85,368.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,748.90 : 235,123.35 = 56,912.35 : x
  2. Step 2: Convert to fraction form
    156,748.90/235,123.35 = 56,912.35/x
  3. Step 3: Cross multiply
    156,748.90x = 235,123.35 × 56,912.35
  4. Step 4: Simplify right side
    156,748.90x = 13,381,422,388.37
  5. Step 5: Solve for x
    x = 13,381,422,388.37/156,748.90
  6. Step 6: Final answer
    x = 85,368.53

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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.