Home / 100,895.40-151,343.10-89,814.60

Finding the Fourth Proportional to 100,895.40, 151,343.10 and 89,814.60

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Solution

The fourth proportional to 100,895.40, 151,343.10 and 89,814.60 is: 134,721.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,895.40 : 151,343.10 = 89,814.60 : x
  2. Step 2: Convert to fraction form
    100,895.40/151,343.10 = 89,814.60/x
  3. Step 3: Cross multiply
    100,895.40x = 151,343.10 × 89,814.60
  4. Step 4: Simplify right side
    100,895.40x = 13,592,819,989.26
  5. Step 5: Solve for x
    x = 13,592,819,989.26/100,895.40
  6. Step 6: Final answer
    x = 134,721.90

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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.