Home / 131,388.65-181,316.29-70,959.31

Finding the Fourth Proportional to 131,388.65, 181,316.29 and 70,959.31

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Solution

The fourth proportional to 131,388.65, 181,316.29 and 70,959.31 is: 97,923.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,388.65 : 181,316.29 = 70,959.31 : x
  2. Step 2: Convert to fraction form
    131,388.65/181,316.29 = 70,959.31/x
  3. Step 3: Cross multiply
    131,388.65x = 181,316.29 × 70,959.31
  4. Step 4: Simplify right side
    131,388.65x = 12,866,078,332.52
  5. Step 5: Solve for x
    x = 12,866,078,332.52/131,388.65
  6. Step 6: Final answer
    x = 97,923.82

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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.