Home / 145,816.70-218,725.05-52,310.30

Finding the Fourth Proportional to 145,816.70, 218,725.05 and 52,310.30

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Solution

The fourth proportional to 145,816.70, 218,725.05 and 52,310.30 is: 78,465.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,816.70 : 218,725.05 = 52,310.30 : x
  2. Step 2: Convert to fraction form
    145,816.70/218,725.05 = 52,310.30/x
  3. Step 3: Cross multiply
    145,816.70x = 218,725.05 × 52,310.30
  4. Step 4: Simplify right side
    145,816.70x = 11,441,572,983.02
  5. Step 5: Solve for x
    x = 11,441,572,983.02/145,816.70
  6. Step 6: Final answer
    x = 78,465.45

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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.