Home / 134,929.68-186,219.36-78,341.04

Finding the Fourth Proportional to 134,929.68, 186,219.36 and 78,341.04

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Solution

The fourth proportional to 134,929.68, 186,219.36 and 78,341.04 is: 108,120.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,929.68 : 186,219.36 = 78,341.04 : x
  2. Step 2: Convert to fraction form
    134,929.68/186,219.36 = 78,341.04/x
  3. Step 3: Cross multiply
    134,929.68x = 186,219.36 × 78,341.04
  4. Step 4: Simplify right side
    134,929.68x = 14,588,618,330.53
  5. Step 5: Solve for x
    x = 14,588,618,330.53/134,929.68
  6. Step 6: Final answer
    x = 108,120.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.