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Finding the Fourth Proportional to 98,637, 136,119.06 and 53,925

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Solution

The fourth proportional to 98,637, 136,119.06 and 53,925 is: 74,416.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,637 : 136,119.06 = 53,925 : x
  2. Step 2: Convert to fraction form
    98,637/136,119.06 = 53,925/x
  3. Step 3: Cross multiply
    98,637x = 136,119.06 × 53,925
  4. Step 4: Simplify right side
    98,637x = 7,340,220,310.50
  5. Step 5: Solve for x
    x = 7,340,220,310.50/98,637
  6. Step 6: Final answer
    x = 74,416.50

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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.