Home / 255,151.12-382,726.32-86,688.94

Finding the Fourth Proportional to 255,151.12, 382,726.32 and 86,688.94

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Solution

The fourth proportional to 255,151.12, 382,726.32 and 86,688.94 is: 130,033.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,151.12 : 382,726.32 = 86,688.94 : x
  2. Step 2: Convert to fraction form
    255,151.12/382,726.32 = 86,688.94/x
  3. Step 3: Cross multiply
    255,151.12x = 382,726.32 × 86,688.94
  4. Step 4: Simplify right side
    255,151.12x = 33,178,138,990.90
  5. Step 5: Solve for x
    x = 33,178,138,990.90/255,151.12
  6. Step 6: Final answer
    x = 130,033.29

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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.