Home / 131,386.83-181,313.78-70,957.49

Finding the Fourth Proportional to 131,386.83, 181,313.78 and 70,957.49

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Solution

The fourth proportional to 131,386.83, 181,313.78 and 70,957.49 is: 97,921.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,386.83 : 181,313.78 = 70,957.49 : x
  2. Step 2: Convert to fraction form
    131,386.83/181,313.78 = 70,957.49/x
  3. Step 3: Cross multiply
    131,386.83x = 181,313.78 × 70,957.49
  4. Step 4: Simplify right side
    131,386.83x = 12,865,570,455.32
  5. Step 5: Solve for x
    x = 12,865,570,455.32/131,386.83
  6. Step 6: Final answer
    x = 97,921.31

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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.