Home / 115,434.50-159,389.78-88,534.40

Finding the Fourth Proportional to 115,434.50, 159,389.78 and 88,534.40

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Solution

The fourth proportional to 115,434.50, 159,389.78 and 88,534.40 is: 122,246.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,434.50 : 159,389.78 = 88,534.40 : x
  2. Step 2: Convert to fraction form
    115,434.50/159,389.78 = 88,534.40/x
  3. Step 3: Cross multiply
    115,434.50x = 159,389.78 × 88,534.40
  4. Step 4: Simplify right side
    115,434.50x = 14,111,477,298.81
  5. Step 5: Solve for x
    x = 14,111,477,298.81/115,434.50
  6. Step 6: Final answer
    x = 122,246.62

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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.