Home / 151,698.07-209,341.87-83,715.67

Finding the Fourth Proportional to 151,698.07, 209,341.87 and 83,715.67

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Solution

The fourth proportional to 151,698.07, 209,341.87 and 83,715.67 is: 115,526.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,698.07 : 209,341.87 = 83,715.67 : x
  2. Step 2: Convert to fraction form
    151,698.07/209,341.87 = 83,715.67/x
  3. Step 3: Cross multiply
    151,698.07x = 209,341.87 × 83,715.67
  4. Step 4: Simplify right side
    151,698.07x = 17,525,194,906.10
  5. Step 5: Solve for x
    x = 17,525,194,906.10/151,698.07
  6. Step 6: Final answer
    x = 115,526.82

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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.