Home / 115,368.19-159,208.13-63,685.33

Finding the Fourth Proportional to 115,368.19, 159,208.13 and 63,685.33

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Solution

The fourth proportional to 115,368.19, 159,208.13 and 63,685.33 is: 87,885.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,368.19 : 159,208.13 = 63,685.33 : x
  2. Step 2: Convert to fraction form
    115,368.19/159,208.13 = 63,685.33/x
  3. Step 3: Cross multiply
    115,368.19x = 159,208.13 × 63,685.33
  4. Step 4: Simplify right side
    115,368.19x = 10,139,222,297.73
  5. Step 5: Solve for x
    x = 10,139,222,297.73/115,368.19
  6. Step 6: Final answer
    x = 87,885.77

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1.5x scale

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.