Home / 151,539.37-209,109.52-87,870.13

Finding the Fourth Proportional to 151,539.37, 209,109.52 and 87,870.13

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Solution

The fourth proportional to 151,539.37, 209,109.52 and 87,870.13 is: 121,252.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,539.37 : 209,109.52 = 87,870.13 : x
  2. Step 2: Convert to fraction form
    151,539.37/209,109.52 = 87,870.13/x
  3. Step 3: Cross multiply
    151,539.37x = 209,109.52 × 87,870.13
  4. Step 4: Simplify right side
    151,539.37x = 18,374,480,706.64
  5. Step 5: Solve for x
    x = 18,374,480,706.64/151,539.37
  6. Step 6: Final answer
    x = 121,252.19

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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.