Home / 136,003.70-204,005.55-86,140.10

Finding the Fourth Proportional to 136,003.70, 204,005.55 and 86,140.10

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Solution

The fourth proportional to 136,003.70, 204,005.55 and 86,140.10 is: 129,210.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,003.70 : 204,005.55 = 86,140.10 : x
  2. Step 2: Convert to fraction form
    136,003.70/204,005.55 = 86,140.10/x
  3. Step 3: Cross multiply
    136,003.70x = 204,005.55 × 86,140.10
  4. Step 4: Simplify right side
    136,003.70x = 17,573,058,477.56
  5. Step 5: Solve for x
    x = 17,573,058,477.56/136,003.70
  6. Step 6: Final answer
    x = 129,210.15

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1.5x scale

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.