Home / 156,975.74-235,147.98-72,617.48

Finding the Fourth Proportional to 156,975.74, 235,147.98 and 72,617.48

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Solution

The fourth proportional to 156,975.74, 235,147.98 and 72,617.48 is: 108,780.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,975.74 : 235,147.98 = 72,617.48 : x
  2. Step 2: Convert to fraction form
    156,975.74/235,147.98 = 72,617.48/x
  3. Step 3: Cross multiply
    156,975.74x = 235,147.98 × 72,617.48
  4. Step 4: Simplify right side
    156,975.74x = 17,075,853,734.69
  5. Step 5: Solve for x
    x = 17,075,853,734.69/156,975.74
  6. Step 6: Final answer
    x = 108,780.21

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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.