Home / 115,890.60-173,835.90-89,614.20

Finding the Fourth Proportional to 115,890.60, 173,835.90 and 89,614.20

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Solution

The fourth proportional to 115,890.60, 173,835.90 and 89,614.20 is: 134,421.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,890.60 : 173,835.90 = 89,614.20 : x
  2. Step 2: Convert to fraction form
    115,890.60/173,835.90 = 89,614.20/x
  3. Step 3: Cross multiply
    115,890.60x = 173,835.90 × 89,614.20
  4. Step 4: Simplify right side
    115,890.60x = 15,578,165,109.78
  5. Step 5: Solve for x
    x = 15,578,165,109.78/115,890.60
  6. Step 6: Final answer
    x = 134,421.30

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1.5x scale

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.