Home / 156,903.10-235,354.65-109,663.90

Finding the Fourth Proportional to 156,903.10, 235,354.65 and 109,663.90

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Solution

The fourth proportional to 156,903.10, 235,354.65 and 109,663.90 is: 164,495.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,903.10 : 235,354.65 = 109,663.90 : x
  2. Step 2: Convert to fraction form
    156,903.10/235,354.65 = 109,663.90/x
  3. Step 3: Cross multiply
    156,903.10x = 235,354.65 × 109,663.90
  4. Step 4: Simplify right side
    156,903.10x = 25,809,908,802.14
  5. Step 5: Solve for x
    x = 25,809,908,802.14/156,903.10
  6. Step 6: Final answer
    x = 164,495.85

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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.