Home / 115,659.50-173,291.05-77,637.59

Finding the Fourth Proportional to 115,659.50, 173,291.05 and 77,637.59

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Solution

The fourth proportional to 115,659.50, 173,291.05 and 77,637.59 is: 116,323.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,659.50 : 173,291.05 = 77,637.59 : x
  2. Step 2: Convert to fraction form
    115,659.50/173,291.05 = 77,637.59/x
  3. Step 3: Cross multiply
    115,659.50x = 173,291.05 × 77,637.59
  4. Step 4: Simplify right side
    115,659.50x = 13,453,898,934.29
  5. Step 5: Solve for x
    x = 13,453,898,934.29/115,659.50
  6. Step 6: Final answer
    x = 116,323.34

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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.