Home / 187,390.32-258,605.04-106,829.76

Finding the Fourth Proportional to 187,390.32, 258,605.04 and 106,829.76

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Solution

The fourth proportional to 187,390.32, 258,605.04 and 106,829.76 is: 147,428.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,390.32 : 258,605.04 = 106,829.76 : x
  2. Step 2: Convert to fraction form
    187,390.32/258,605.04 = 106,829.76/x
  3. Step 3: Cross multiply
    187,390.32x = 258,605.04 × 106,829.76
  4. Step 4: Simplify right side
    187,390.32x = 27,626,714,357.99
  5. Step 5: Solve for x
    x = 27,626,714,357.99/187,390.32
  6. Step 6: Final answer
    x = 147,428.72

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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.