Home / 156,642.90-234,911.64-56,782.20

Finding the Fourth Proportional to 156,642.90, 234,911.64 and 56,782.20

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Solution

The fourth proportional to 156,642.90, 234,911.64 and 56,782.20 is: 85,154.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,642.90 : 234,911.64 = 56,782.20 : x
  2. Step 2: Convert to fraction form
    156,642.90/234,911.64 = 56,782.20/x
  3. Step 3: Cross multiply
    156,642.90x = 234,911.64 × 56,782.20
  4. Step 4: Simplify right side
    156,642.90x = 13,338,799,724.81
  5. Step 5: Solve for x
    x = 13,338,799,724.81/156,642.90
  6. Step 6: Final answer
    x = 85,154.19

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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.