Home / 145,787.50-218,187.46-89,663.19

Finding the Fourth Proportional to 145,787.50, 218,187.46 and 89,663.19

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Solution

The fourth proportional to 145,787.50, 218,187.46 and 89,663.19 is: 134,191.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,787.50 : 218,187.46 = 89,663.19 : x
  2. Step 2: Convert to fraction form
    145,787.50/218,187.46 = 89,663.19/x
  3. Step 3: Cross multiply
    145,787.50x = 218,187.46 × 89,663.19
  4. Step 4: Simplify right side
    145,787.50x = 19,563,383,681.60
  5. Step 5: Solve for x
    x = 19,563,383,681.60/145,787.50
  6. Step 6: Final answer
    x = 134,191.09

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1.5x scale

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.