Home / 177,128.80-265,508.64-77,262.16

Finding the Fourth Proportional to 177,128.80, 265,508.64 and 77,262.16

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Solution

The fourth proportional to 177,128.80, 265,508.64 and 77,262.16 is: 115,812.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,128.80 : 265,508.64 = 77,262.16 : x
  2. Step 2: Convert to fraction form
    177,128.80/265,508.64 = 77,262.16/x
  3. Step 3: Cross multiply
    177,128.80x = 265,508.64 × 77,262.16
  4. Step 4: Simplify right side
    177,128.80x = 20,513,771,025.06
  5. Step 5: Solve for x
    x = 20,513,771,025.06/177,128.80
  6. Step 6: Final answer
    x = 115,812.74

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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.