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Finding the Fourth Proportional to 192,737.55, 265,980.98 and 105,521.20

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Solution

The fourth proportional to 192,737.55, 265,980.98 and 105,521.20 is: 145,620.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,737.55 : 265,980.98 = 105,521.20 : x
  2. Step 2: Convert to fraction form
    192,737.55/265,980.98 = 105,521.20/x
  3. Step 3: Cross multiply
    192,737.55x = 265,980.98 × 105,521.20
  4. Step 4: Simplify right side
    192,737.55x = 28,066,631,659.17
  5. Step 5: Solve for x
    x = 28,066,631,659.17/192,737.55
  6. Step 6: Final answer
    x = 145,620.98

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1.5x scale

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.