Home / 142,064.40-213,096.60-89,533.20

Finding the Fourth Proportional to 142,064.40, 213,096.60 and 89,533.20

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Solution

The fourth proportional to 142,064.40, 213,096.60 and 89,533.20 is: 134,299.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,064.40 : 213,096.60 = 89,533.20 : x
  2. Step 2: Convert to fraction form
    142,064.40/213,096.60 = 89,533.20/x
  3. Step 3: Cross multiply
    142,064.40x = 213,096.60 × 89,533.20
  4. Step 4: Simplify right side
    142,064.40x = 19,079,220,507.12
  5. Step 5: Solve for x
    x = 19,079,220,507.12/142,064.40
  6. Step 6: Final answer
    x = 134,299.80

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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.