Home / 160,427.76-221,390.37-87,835.35

Finding the Fourth Proportional to 160,427.76, 221,390.37 and 87,835.35

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Solution

The fourth proportional to 160,427.76, 221,390.37 and 87,835.35 is: 121,212.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,427.76 : 221,390.37 = 87,835.35 : x
  2. Step 2: Convert to fraction form
    160,427.76/221,390.37 = 87,835.35/x
  3. Step 3: Cross multiply
    160,427.76x = 221,390.37 × 87,835.35
  4. Step 4: Simplify right side
    160,427.76x = 19,445,900,596.10
  5. Step 5: Solve for x
    x = 19,445,900,596.10/160,427.76
  6. Step 6: Final answer
    x = 121,212.82

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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.