Home / 142,970.54-214,457.36-43,131.60

Finding the Fourth Proportional to 142,970.54, 214,457.36 and 43,131.60

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Solution

The fourth proportional to 142,970.54, 214,457.36 and 43,131.60 is: 64,697.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,970.54 : 214,457.36 = 43,131.60 : x
  2. Step 2: Convert to fraction form
    142,970.54/214,457.36 = 43,131.60/x
  3. Step 3: Cross multiply
    142,970.54x = 214,457.36 × 43,131.60
  4. Step 4: Simplify right side
    142,970.54x = 9,249,888,852.92
  5. Step 5: Solve for x
    x = 9,249,888,852.92/142,970.54
  6. Step 6: Final answer
    x = 64,697.87

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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.