Home / 115,554.09-159,472.08-67,790.01

Finding the Fourth Proportional to 115,554.09, 159,472.08 and 67,790.01

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Solution

The fourth proportional to 115,554.09, 159,472.08 and 67,790.01 is: 93,554.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,554.09 : 159,472.08 = 67,790.01 : x
  2. Step 2: Convert to fraction form
    115,554.09/159,472.08 = 67,790.01/x
  3. Step 3: Cross multiply
    115,554.09x = 159,472.08 × 67,790.01
  4. Step 4: Simplify right side
    115,554.09x = 10,810,613,897.92
  5. Step 5: Solve for x
    x = 10,810,613,897.92/115,554.09
  6. Step 6: Final answer
    x = 93,554.58

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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.