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Finding the Fourth Proportional to 98,088.89, 146,750.93 and 85,984.96

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Solution

The fourth proportional to 98,088.89, 146,750.93 and 85,984.96 is: 128,642.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,088.89 : 146,750.93 = 85,984.96 : x
  2. Step 2: Convert to fraction form
    98,088.89/146,750.93 = 85,984.96/x
  3. Step 3: Cross multiply
    98,088.89x = 146,750.93 × 85,984.96
  4. Step 4: Simplify right side
    98,088.89x = 12,618,372,479.14
  5. Step 5: Solve for x
    x = 12,618,372,479.14/98,088.89
  6. Step 6: Final answer
    x = 128,642.22

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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.