Home / 156,742.40-235,135.20-56,878.40

Finding the Fourth Proportional to 156,742.40, 235,135.20 and 56,878.40

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Solution

The fourth proportional to 156,742.40, 235,135.20 and 56,878.40 is: 85,325.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,742.40 : 235,135.20 = 56,878.40 : x
  2. Step 2: Convert to fraction form
    156,742.40/235,135.20 = 56,878.40/x
  3. Step 3: Cross multiply
    156,742.40x = 235,135.20 × 56,878.40
  4. Step 4: Simplify right side
    156,742.40x = 13,374,113,959.68
  5. Step 5: Solve for x
    x = 13,374,113,959.68/156,742.40
  6. Step 6: Final answer
    x = 85,325.44

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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.