Home / 142,740.04-214,140.12-53,991.60

Finding the Fourth Proportional to 142,740.04, 214,140.12 and 53,991.60

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Solution

The fourth proportional to 142,740.04, 214,140.12 and 53,991.60 is: 80,998.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,740.04 : 214,140.12 = 53,991.60 : x
  2. Step 2: Convert to fraction form
    142,740.04/214,140.12 = 53,991.60/x
  3. Step 3: Cross multiply
    142,740.04x = 214,140.12 × 53,991.60
  4. Step 4: Simplify right side
    142,740.04x = 11,561,767,702.99
  5. Step 5: Solve for x
    x = 11,561,767,702.99/142,740.04
  6. Step 6: Final answer
    x = 80,998.77

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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.