Home / 136,945.17-188,983.04-76,526.22

Finding the Fourth Proportional to 136,945.17, 188,983.04 and 76,526.22

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Solution

The fourth proportional to 136,945.17, 188,983.04 and 76,526.22 is: 105,605.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,945.17 : 188,983.04 = 76,526.22 : x
  2. Step 2: Convert to fraction form
    136,945.17/188,983.04 = 76,526.22/x
  3. Step 3: Cross multiply
    136,945.17x = 188,983.04 × 76,526.22
  4. Step 4: Simplify right side
    136,945.17x = 14,462,157,312.68
  5. Step 5: Solve for x
    x = 14,462,157,312.68/136,945.17
  6. Step 6: Final answer
    x = 105,605.46

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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.