Home / 136,530.24-188,411.28-76,100.22

Finding the Fourth Proportional to 136,530.24, 188,411.28 and 76,100.22

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Solution

The fourth proportional to 136,530.24, 188,411.28 and 76,100.22 is: 105,018.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,530.24 : 188,411.28 = 76,100.22 : x
  2. Step 2: Convert to fraction form
    136,530.24/188,411.28 = 76,100.22/x
  3. Step 3: Cross multiply
    136,530.24x = 188,411.28 × 76,100.22
  4. Step 4: Simplify right side
    136,530.24x = 14,338,139,858.48
  5. Step 5: Solve for x
    x = 14,338,139,858.48/136,530.24
  6. Step 6: Final answer
    x = 105,018.05

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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.