Home / 229,432.08-316,637.70-138,810.36

Finding the Fourth Proportional to 229,432.08, 316,637.70 and 138,810.36

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Solution

The fourth proportional to 229,432.08, 316,637.70 and 138,810.36 is: 191,571.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,432.08 : 316,637.70 = 138,810.36 : x
  2. Step 2: Convert to fraction form
    229,432.08/316,637.70 = 138,810.36/x
  3. Step 3: Cross multiply
    229,432.08x = 316,637.70 × 138,810.36
  4. Step 4: Simplify right side
    229,432.08x = 43,952,593,126.57
  5. Step 5: Solve for x
    x = 43,952,593,126.57/229,432.08
  6. Step 6: Final answer
    x = 191,571.26

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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.