Home / 134,167.19-185,155.18-78,966.51

Finding the Fourth Proportional to 134,167.19, 185,155.18 and 78,966.51

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Solution

The fourth proportional to 134,167.19, 185,155.18 and 78,966.51 is: 108,976.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,167.19 : 185,155.18 = 78,966.51 : x
  2. Step 2: Convert to fraction form
    134,167.19/185,155.18 = 78,966.51/x
  3. Step 3: Cross multiply
    134,167.19x = 185,155.18 × 78,966.51
  4. Step 4: Simplify right side
    134,167.19x = 14,621,057,447.25
  5. Step 5: Solve for x
    x = 14,621,057,447.25/134,167.19
  6. Step 6: Final answer
    x = 108,976.40

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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.