Home / 118,787.28-163,886.24-70,374.08

Finding the Fourth Proportional to 118,787.28, 163,886.24 and 70,374.08

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Solution

The fourth proportional to 118,787.28, 163,886.24 and 70,374.08 is: 97,092.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,787.28 : 163,886.24 = 70,374.08 : x
  2. Step 2: Convert to fraction form
    118,787.28/163,886.24 = 70,374.08/x
  3. Step 3: Cross multiply
    118,787.28x = 163,886.24 × 70,374.08
  4. Step 4: Simplify right side
    118,787.28x = 11,533,343,364.66
  5. Step 5: Solve for x
    x = 11,533,343,364.66/118,787.28
  6. Step 6: Final answer
    x = 97,092.41

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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.