Home / 155,881.51-215,117.48-84,261.37

Finding the Fourth Proportional to 155,881.51, 215,117.48 and 84,261.37

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Solution

The fourth proportional to 155,881.51, 215,117.48 and 84,261.37 is: 116,281.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,881.51 : 215,117.48 = 84,261.37 : x
  2. Step 2: Convert to fraction form
    155,881.51/215,117.48 = 84,261.37/x
  3. Step 3: Cross multiply
    155,881.51x = 215,117.48 × 84,261.37
  4. Step 4: Simplify right side
    155,881.51x = 18,126,093,575.75
  5. Step 5: Solve for x
    x = 18,126,093,575.75/155,881.51
  6. Step 6: Final answer
    x = 116,281.23

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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.