Home / 113,726.16-156,942.36-63,428.40

Finding the Fourth Proportional to 113,726.16, 156,942.36 and 63,428.40

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Solution

The fourth proportional to 113,726.16, 156,942.36 and 63,428.40 is: 87,531.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,726.16 : 156,942.36 = 63,428.40 : x
  2. Step 2: Convert to fraction form
    113,726.16/156,942.36 = 63,428.40/x
  3. Step 3: Cross multiply
    113,726.16x = 156,942.36 × 63,428.40
  4. Step 4: Simplify right side
    113,726.16x = 9,954,602,787.02
  5. Step 5: Solve for x
    x = 9,954,602,787.02/113,726.16
  6. Step 6: Final answer
    x = 87,531.34

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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.