Home / 142,152.40-213,102.95-57,982.97

Finding the Fourth Proportional to 142,152.40, 213,102.95 and 57,982.97

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Solution

The fourth proportional to 142,152.40, 213,102.95 and 57,982.97 is: 86,923.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,152.40 : 213,102.95 = 57,982.97 : x
  2. Step 2: Convert to fraction form
    142,152.40/213,102.95 = 57,982.97/x
  3. Step 3: Cross multiply
    142,152.40x = 213,102.95 × 57,982.97
  4. Step 4: Simplify right side
    142,152.40x = 12,356,342,525.76
  5. Step 5: Solve for x
    x = 12,356,342,525.76/142,152.40
  6. Step 6: Final answer
    x = 86,923.21

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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.