Home / 136,018.24-187,710.80-75,588.64

Finding the Fourth Proportional to 136,018.24, 187,710.80 and 75,588.64

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Solution

The fourth proportional to 136,018.24, 187,710.80 and 75,588.64 is: 104,315.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,018.24 : 187,710.80 = 75,588.64 : x
  2. Step 2: Convert to fraction form
    136,018.24/187,710.80 = 75,588.64/x
  3. Step 3: Cross multiply
    136,018.24x = 187,710.80 × 75,588.64
  4. Step 4: Simplify right side
    136,018.24x = 14,188,804,085.31
  5. Step 5: Solve for x
    x = 14,188,804,085.31/136,018.24
  6. Step 6: Final answer
    x = 104,315.45

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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.