Home / 142,320.76-213,295.93-57,982.15

Finding the Fourth Proportional to 142,320.76, 213,295.93 and 57,982.15

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Solution

The fourth proportional to 142,320.76, 213,295.93 and 57,982.15 is: 86,897.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,320.76 : 213,295.93 = 57,982.15 : x
  2. Step 2: Convert to fraction form
    142,320.76/213,295.93 = 57,982.15/x
  3. Step 3: Cross multiply
    142,320.76x = 213,295.93 × 57,982.15
  4. Step 4: Simplify right side
    142,320.76x = 12,367,356,607.65
  5. Step 5: Solve for x
    x = 12,367,356,607.65/142,320.76
  6. Step 6: Final answer
    x = 86,897.77

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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.