Home / 148,931.93-205,527.44-80,949.06

Finding the Fourth Proportional to 148,931.93, 205,527.44 and 80,949.06

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Solution

The fourth proportional to 148,931.93, 205,527.44 and 80,949.06 is: 111,710.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,931.93 : 205,527.44 = 80,949.06 : x
  2. Step 2: Convert to fraction form
    148,931.93/205,527.44 = 80,949.06/x
  3. Step 3: Cross multiply
    148,931.93x = 205,527.44 × 80,949.06
  4. Step 4: Simplify right side
    148,931.93x = 16,637,251,639.82
  5. Step 5: Solve for x
    x = 16,637,251,639.82/148,931.93
  6. Step 6: Final answer
    x = 111,710.45

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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.