Home / 147,159.75-219,517.86-142,239.81

Finding the Fourth Proportional to 147,159.75, 219,517.86 and 142,239.81

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Solution

The fourth proportional to 147,159.75, 219,517.86 and 142,239.81 is: 212,178.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,159.75 : 219,517.86 = 142,239.81 : x
  2. Step 2: Convert to fraction form
    147,159.75/219,517.86 = 142,239.81/x
  3. Step 3: Cross multiply
    147,159.75x = 219,517.86 × 142,239.81
  4. Step 4: Simplify right side
    147,159.75x = 31,224,178,698.01
  5. Step 5: Solve for x
    x = 31,224,178,698.01/147,159.75
  6. Step 6: Final answer
    x = 212,178.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.