Home / 156,823.85-235,354.08-72,643.08

Finding the Fourth Proportional to 156,823.85, 235,354.08 and 72,643.08

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Solution

The fourth proportional to 156,823.85, 235,354.08 and 72,643.08 is: 109,019.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,823.85 : 235,354.08 = 72,643.08 : x
  2. Step 2: Convert to fraction form
    156,823.85/235,354.08 = 72,643.08/x
  3. Step 3: Cross multiply
    156,823.85x = 235,354.08 × 72,643.08
  4. Step 4: Simplify right side
    156,823.85x = 17,096,845,261.77
  5. Step 5: Solve for x
    x = 17,096,845,261.77/156,823.85
  6. Step 6: Final answer
    x = 109,019.42

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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.