Home / 131,607.95-181,618.97-71,178.59

Finding the Fourth Proportional to 131,607.95, 181,618.97 and 71,178.59

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Solution

The fourth proportional to 131,607.95, 181,618.97 and 71,178.59 is: 98,226.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,607.95 : 181,618.97 = 71,178.59 : x
  2. Step 2: Convert to fraction form
    131,607.95/181,618.97 = 71,178.59/x
  3. Step 3: Cross multiply
    131,607.95x = 181,618.97 × 71,178.59
  4. Step 4: Simplify right side
    131,607.95x = 12,927,382,300.01
  5. Step 5: Solve for x
    x = 12,927,382,300.01/131,607.95
  6. Step 6: Final answer
    x = 98,226.46

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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.