Home / 134,511.13-185,619.35-77,109.29

Finding the Fourth Proportional to 134,511.13, 185,619.35 and 77,109.29

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Solution

The fourth proportional to 134,511.13, 185,619.35 and 77,109.29 is: 106,407.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,511.13 : 185,619.35 = 77,109.29 : x
  2. Step 2: Convert to fraction form
    134,511.13/185,619.35 = 77,109.29/x
  3. Step 3: Cross multiply
    134,511.13x = 185,619.35 × 77,109.29
  4. Step 4: Simplify right side
    134,511.13x = 14,312,976,337.83
  5. Step 5: Solve for x
    x = 14,312,976,337.83/134,511.13
  6. Step 6: Final answer
    x = 106,407.37

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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.