Home / 160,529.65-221,530.95-87,932.86

Finding the Fourth Proportional to 160,529.65, 221,530.95 and 87,932.86

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Solution

The fourth proportional to 160,529.65, 221,530.95 and 87,932.86 is: 121,347.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,529.65 : 221,530.95 = 87,932.86 : x
  2. Step 2: Convert to fraction form
    160,529.65/221,530.95 = 87,932.86/x
  3. Step 3: Cross multiply
    160,529.65x = 221,530.95 × 87,932.86
  4. Step 4: Simplify right side
    160,529.65x = 19,479,849,458.19
  5. Step 5: Solve for x
    x = 19,479,849,458.19/160,529.65
  6. Step 6: Final answer
    x = 121,347.36

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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.