Home / 148,840.65-205,399.28-80,857.08

Finding the Fourth Proportional to 148,840.65, 205,399.28 and 80,857.08

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Solution

The fourth proportional to 148,840.65, 205,399.28 and 80,857.08 is: 111,582.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,840.65 : 205,399.28 = 80,857.08 : x
  2. Step 2: Convert to fraction form
    148,840.65/205,399.28 = 80,857.08/x
  3. Step 3: Cross multiply
    148,840.65x = 205,399.28 × 80,857.08
  4. Step 4: Simplify right side
    148,840.65x = 16,607,985,762.22
  5. Step 5: Solve for x
    x = 16,607,985,762.22/148,840.65
  6. Step 6: Final answer
    x = 111,582.32

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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.