Home / 142,440.52-213,510.10-53,655.60

Finding the Fourth Proportional to 142,440.52, 213,510.10 and 53,655.60

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Solution

The fourth proportional to 142,440.52, 213,510.10 and 53,655.60 is: 80,426.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,440.52 : 213,510.10 = 53,655.60 : x
  2. Step 2: Convert to fraction form
    142,440.52/213,510.10 = 53,655.60/x
  3. Step 3: Cross multiply
    142,440.52x = 213,510.10 × 53,655.60
  4. Step 4: Simplify right side
    142,440.52x = 11,456,012,521.56
  5. Step 5: Solve for x
    x = 11,456,012,521.56/142,440.52
  6. Step 6: Final answer
    x = 80,426.64

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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.