Home / 98,861.40-148,637.70-96,787.80

Finding the Fourth Proportional to 98,861.40, 148,637.70 and 96,787.80

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Solution

The fourth proportional to 98,861.40, 148,637.70 and 96,787.80 is: 145,520.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,861.40 : 148,637.70 = 96,787.80 : x
  2. Step 2: Convert to fraction form
    98,861.40/148,637.70 = 96,787.80/x
  3. Step 3: Cross multiply
    98,861.40x = 148,637.70 × 96,787.80
  4. Step 4: Simplify right side
    98,861.40x = 14,386,315,980.06
  5. Step 5: Solve for x
    x = 14,386,315,980.06/98,861.40
  6. Step 6: Final answer
    x = 145,520.05

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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.