Home / 429,672.19-644,541.09-130,177.58

Finding the Fourth Proportional to 429,672.19, 644,541.09 and 130,177.58

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Solution

The fourth proportional to 429,672.19, 644,541.09 and 130,177.58 is: 195,276.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,672.19 : 644,541.09 = 130,177.58 : x
  2. Step 2: Convert to fraction form
    429,672.19/644,541.09 = 130,177.58/x
  3. Step 3: Cross multiply
    429,672.19x = 644,541.09 × 130,177.58
  4. Step 4: Simplify right side
    429,672.19x = 83,904,796,084.06
  5. Step 5: Solve for x
    x = 83,904,796,084.06/429,672.19
  6. Step 6: Final answer
    x = 195,276.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.