Home / 152,106.66-209,902.19-84,122.55

Finding the Fourth Proportional to 152,106.66, 209,902.19 and 84,122.55

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Solution

The fourth proportional to 152,106.66, 209,902.19 and 84,122.55 is: 116,086.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,106.66 : 209,902.19 = 84,122.55 : x
  2. Step 2: Convert to fraction form
    152,106.66/209,902.19 = 84,122.55/x
  3. Step 3: Cross multiply
    152,106.66x = 209,902.19 × 84,122.55
  4. Step 4: Simplify right side
    152,106.66x = 17,657,507,052.77
  5. Step 5: Solve for x
    x = 17,657,507,052.77/152,106.66
  6. Step 6: Final answer
    x = 116,086.35

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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.