Home / 123,590.08-170,463.72-81,133.12

Finding the Fourth Proportional to 123,590.08, 170,463.72 and 81,133.12

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Solution

The fourth proportional to 123,590.08, 170,463.72 and 81,133.12 is: 111,904.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,590.08 : 170,463.72 = 81,133.12 : x
  2. Step 2: Convert to fraction form
    123,590.08/170,463.72 = 81,133.12/x
  3. Step 3: Cross multiply
    123,590.08x = 170,463.72 × 81,133.12
  4. Step 4: Simplify right side
    123,590.08x = 13,830,253,450.41
  5. Step 5: Solve for x
    x = 13,830,253,450.41/123,590.08
  6. Step 6: Final answer
    x = 111,904.24

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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.