Home / 159,482.28-220,077.66-87,860.40

Finding the Fourth Proportional to 159,482.28, 220,077.66 and 87,860.40

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Solution

The fourth proportional to 159,482.28, 220,077.66 and 87,860.40 is: 121,243.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,482.28 : 220,077.66 = 87,860.40 : x
  2. Step 2: Convert to fraction form
    159,482.28/220,077.66 = 87,860.40/x
  3. Step 3: Cross multiply
    159,482.28x = 220,077.66 × 87,860.40
  4. Step 4: Simplify right side
    159,482.28x = 19,336,111,238.66
  5. Step 5: Solve for x
    x = 19,336,111,238.66/159,482.28
  6. Step 6: Final answer
    x = 121,243.01

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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.