Home / 131,400.36-181,332.44-70,970.98

Finding the Fourth Proportional to 131,400.36, 181,332.44 and 70,970.98

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Solution

The fourth proportional to 131,400.36, 181,332.44 and 70,970.98 is: 97,939.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,400.36 : 181,332.44 = 70,970.98 : x
  2. Step 2: Convert to fraction form
    131,400.36/181,332.44 = 70,970.98/x
  3. Step 3: Cross multiply
    131,400.36x = 181,332.44 × 70,970.98
  4. Step 4: Simplify right side
    131,400.36x = 12,869,340,972.59
  5. Step 5: Solve for x
    x = 12,869,340,972.59/131,400.36
  6. Step 6: Final answer
    x = 97,939.92

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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.