Home / 174,507.10-261,655.53-78,426.70

Finding the Fourth Proportional to 174,507.10, 261,655.53 and 78,426.70

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Solution

The fourth proportional to 174,507.10, 261,655.53 and 78,426.70 is: 117,592.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,507.10 : 261,655.53 = 78,426.70 : x
  2. Step 2: Convert to fraction form
    174,507.10/261,655.53 = 78,426.70/x
  3. Step 3: Cross multiply
    174,507.10x = 261,655.53 × 78,426.70
  4. Step 4: Simplify right side
    174,507.10x = 20,520,779,754.65
  5. Step 5: Solve for x
    x = 20,520,779,754.65/174,507.10
  6. Step 6: Final answer
    x = 117,592.81

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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.