Home / 115,478.29-159,325.22-67,070.89

Finding the Fourth Proportional to 115,478.29, 159,325.22 and 67,070.89

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Solution

The fourth proportional to 115,478.29, 159,325.22 and 67,070.89 is: 92,537.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,478.29 : 159,325.22 = 67,070.89 : x
  2. Step 2: Convert to fraction form
    115,478.29/159,325.22 = 67,070.89/x
  3. Step 3: Cross multiply
    115,478.29x = 159,325.22 × 67,070.89
  4. Step 4: Simplify right side
    115,478.29x = 10,686,083,172.87
  5. Step 5: Solve for x
    x = 10,686,083,172.87/115,478.29
  6. Step 6: Final answer
    x = 92,537.59

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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.