Home / 151,565.18-209,172.41-83,595.45

Finding the Fourth Proportional to 151,565.18, 209,172.41 and 83,595.45

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Solution

The fourth proportional to 151,565.18, 209,172.41 and 83,595.45 is: 115,368.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,565.18 : 209,172.41 = 83,595.45 : x
  2. Step 2: Convert to fraction form
    151,565.18/209,172.41 = 83,595.45/x
  3. Step 3: Cross multiply
    151,565.18x = 209,172.41 × 83,595.45
  4. Step 4: Simplify right side
    151,565.18x = 17,485,861,323.56
  5. Step 5: Solve for x
    x = 17,485,861,323.56/151,565.18
  6. Step 6: Final answer
    x = 115,368.59

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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.