Home / 134,782.56-185,881.76-107,915.28

Finding the Fourth Proportional to 134,782.56, 185,881.76 and 107,915.28

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Solution

The fourth proportional to 134,782.56, 185,881.76 and 107,915.28 is: 148,828.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,782.56 : 185,881.76 = 107,915.28 : x
  2. Step 2: Convert to fraction form
    134,782.56/185,881.76 = 107,915.28/x
  3. Step 3: Cross multiply
    134,782.56x = 185,881.76 × 107,915.28
  4. Step 4: Simplify right side
    134,782.56x = 20,059,482,177.29
  5. Step 5: Solve for x
    x = 20,059,482,177.29/134,782.56
  6. Step 6: Final answer
    x = 148,828.47

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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.