Home / 131,357.16-181,273.95-74,772.18

Finding the Fourth Proportional to 131,357.16, 181,273.95 and 74,772.18

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Solution

The fourth proportional to 131,357.16, 181,273.95 and 74,772.18 is: 103,186.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,357.16 : 181,273.95 = 74,772.18 : x
  2. Step 2: Convert to fraction form
    131,357.16/181,273.95 = 74,772.18/x
  3. Step 3: Cross multiply
    131,357.16x = 181,273.95 × 74,772.18
  4. Step 4: Simplify right side
    131,357.16x = 13,554,248,418.71
  5. Step 5: Solve for x
    x = 13,554,248,418.71/131,357.16
  6. Step 6: Final answer
    x = 103,186.22

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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.