Home / 136,526.03-188,406.78-76,100.50

Finding the Fourth Proportional to 136,526.03, 188,406.78 and 76,100.50

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Solution

The fourth proportional to 136,526.03, 188,406.78 and 76,100.50 is: 105,019.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,526.03 : 188,406.78 = 76,100.50 : x
  2. Step 2: Convert to fraction form
    136,526.03/188,406.78 = 76,100.50/x
  3. Step 3: Cross multiply
    136,526.03x = 188,406.78 × 76,100.50
  4. Step 4: Simplify right side
    136,526.03x = 14,337,849,219.36
  5. Step 5: Solve for x
    x = 14,337,849,219.36/136,526.03
  6. Step 6: Final answer
    x = 105,019.16

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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.