Home / 156,823.83-235,354.04-72,643.05

Finding the Fourth Proportional to 156,823.83, 235,354.04 and 72,643.05

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Solution

The fourth proportional to 156,823.83, 235,354.04 and 72,643.05 is: 109,019.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,823.83 : 235,354.04 = 72,643.05 : x
  2. Step 2: Convert to fraction form
    156,823.83/235,354.04 = 72,643.05/x
  3. Step 3: Cross multiply
    156,823.83x = 235,354.04 × 72,643.05
  4. Step 4: Simplify right side
    156,823.83x = 17,096,835,204.62
  5. Step 5: Solve for x
    x = 17,096,835,204.62/156,823.83
  6. Step 6: Final answer
    x = 109,019.37

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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.