Home / 156,721.15-235,119.53-51,534.55

Finding the Fourth Proportional to 156,721.15, 235,119.53 and 51,534.55

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Solution

The fourth proportional to 156,721.15, 235,119.53 and 51,534.55 is: 77,314.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,721.15 : 235,119.53 = 51,534.55 : x
  2. Step 2: Convert to fraction form
    156,721.15/235,119.53 = 51,534.55/x
  3. Step 3: Cross multiply
    156,721.15x = 235,119.53 × 51,534.55
  4. Step 4: Simplify right side
    156,721.15x = 12,116,779,174.76
  5. Step 5: Solve for x
    x = 12,116,779,174.76/156,721.15
  6. Step 6: Final answer
    x = 77,314.26

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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.