Home / 136,888.17-188,903.68-76,459.67

Finding the Fourth Proportional to 136,888.17, 188,903.68 and 76,459.67

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Solution

The fourth proportional to 136,888.17, 188,903.68 and 76,459.67 is: 105,513.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,888.17 : 188,903.68 = 76,459.67 : x
  2. Step 2: Convert to fraction form
    136,888.17/188,903.68 = 76,459.67/x
  3. Step 3: Cross multiply
    136,888.17x = 188,903.68 × 76,459.67
  4. Step 4: Simplify right side
    136,888.17x = 14,443,513,034.59
  5. Step 5: Solve for x
    x = 14,443,513,034.59/136,888.17
  6. Step 6: Final answer
    x = 105,513.23

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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.