Home / 143,953.08-198,718.95-92,990.66

Finding the Fourth Proportional to 143,953.08, 198,718.95 and 92,990.66

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Solution

The fourth proportional to 143,953.08, 198,718.95 and 92,990.66 is: 128,368.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,953.08 : 198,718.95 = 92,990.66 : x
  2. Step 2: Convert to fraction form
    143,953.08/198,718.95 = 92,990.66/x
  3. Step 3: Cross multiply
    143,953.08x = 198,718.95 × 92,990.66
  4. Step 4: Simplify right side
    143,953.08x = 18,479,005,670.13
  5. Step 5: Solve for x
    x = 18,479,005,670.13/143,953.08
  6. Step 6: Final answer
    x = 128,368.26

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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.