Home / 148,968.86-205,621.36-85,349.04

Finding the Fourth Proportional to 148,968.86, 205,621.36 and 85,349.04

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Solution

The fourth proportional to 148,968.86, 205,621.36 and 85,349.04 is: 117,807.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,968.86 : 205,621.36 = 85,349.04 : x
  2. Step 2: Convert to fraction form
    148,968.86/205,621.36 = 85,349.04/x
  3. Step 3: Cross multiply
    148,968.86x = 205,621.36 × 85,349.04
  4. Step 4: Simplify right side
    148,968.86x = 17,549,585,679.49
  5. Step 5: Solve for x
    x = 17,549,585,679.49/148,968.86
  6. Step 6: Final answer
    x = 117,807.08

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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.