Home / 133,172.48-183,776.64-76,582.40

Finding the Fourth Proportional to 133,172.48, 183,776.64 and 76,582.40

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Solution

The fourth proportional to 133,172.48, 183,776.64 and 76,582.40 is: 105,682.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,172.48 : 183,776.64 = 76,582.40 : x
  2. Step 2: Convert to fraction form
    133,172.48/183,776.64 = 76,582.40/x
  3. Step 3: Cross multiply
    133,172.48x = 183,776.64 × 76,582.40
  4. Step 4: Simplify right side
    133,172.48x = 14,074,056,155.14
  5. Step 5: Solve for x
    x = 14,074,056,155.14/133,172.48
  6. Step 6: Final answer
    x = 105,682.92

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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.