Home / 156,740.85-235,111.28-112,782.15

Finding the Fourth Proportional to 156,740.85, 235,111.28 and 112,782.15

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Solution

The fourth proportional to 156,740.85, 235,111.28 and 112,782.15 is: 169,173.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,740.85 : 235,111.28 = 112,782.15 : x
  2. Step 2: Convert to fraction form
    156,740.85/235,111.28 = 112,782.15/x
  3. Step 3: Cross multiply
    156,740.85x = 235,111.28 × 112,782.15
  4. Step 4: Simplify right side
    156,740.85x = 26,516,355,083.74
  5. Step 5: Solve for x
    x = 26,516,355,083.74/156,740.85
  6. Step 6: Final answer
    x = 169,173.23

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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.