Home / 155,878.51-215,113.33-84,258.36

Finding the Fourth Proportional to 155,878.51, 215,113.33 and 84,258.36

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Solution

The fourth proportional to 155,878.51, 215,113.33 and 84,258.36 is: 116,277.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,878.51 : 215,113.33 = 84,258.36 : x
  2. Step 2: Convert to fraction form
    155,878.51/215,113.33 = 84,258.36/x
  3. Step 3: Cross multiply
    155,878.51x = 215,113.33 × 84,258.36
  4. Step 4: Simplify right side
    155,878.51x = 18,125,096,399.94
  5. Step 5: Solve for x
    x = 18,125,096,399.94/155,878.51
  6. Step 6: Final answer
    x = 116,277.07

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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.