Home / 229,101.31-316,161.53-127,127.17

Finding the Fourth Proportional to 229,101.31, 316,161.53 and 127,127.17

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Solution

The fourth proportional to 229,101.31, 316,161.53 and 127,127.17 is: 175,436.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,101.31 : 316,161.53 = 127,127.17 : x
  2. Step 2: Convert to fraction form
    229,101.31/316,161.53 = 127,127.17/x
  3. Step 3: Cross multiply
    229,101.31x = 316,161.53 × 127,127.17
  4. Step 4: Simplify right side
    229,101.31x = 40,192,720,571.77
  5. Step 5: Solve for x
    x = 40,192,720,571.77/229,101.31
  6. Step 6: Final answer
    x = 175,436.45

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1.5x scale

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.