Home / 171,605.36-257,409.57-70,459.04

Finding the Fourth Proportional to 171,605.36, 257,409.57 and 70,459.04

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Solution

The fourth proportional to 171,605.36, 257,409.57 and 70,459.04 is: 105,689.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,605.36 : 257,409.57 = 70,459.04 : x
  2. Step 2: Convert to fraction form
    171,605.36/257,409.57 = 70,459.04/x
  3. Step 3: Cross multiply
    171,605.36x = 257,409.57 × 70,459.04
  4. Step 4: Simplify right side
    171,605.36x = 18,136,830,836.72
  5. Step 5: Solve for x
    x = 18,136,830,836.72/171,605.36
  6. Step 6: Final answer
    x = 105,689.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.