Home / 145,899.60-218,727.90-61,724.40

Finding the Fourth Proportional to 145,899.60, 218,727.90 and 61,724.40

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Solution

The fourth proportional to 145,899.60, 218,727.90 and 61,724.40 is: 92,535.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,899.60 : 218,727.90 = 61,724.40 : x
  2. Step 2: Convert to fraction form
    145,899.60/218,727.90 = 61,724.40/x
  3. Step 3: Cross multiply
    145,899.60x = 218,727.90 × 61,724.40
  4. Step 4: Simplify right side
    145,899.60x = 13,500,848,390.76
  5. Step 5: Solve for x
    x = 13,500,848,390.76/145,899.60
  6. Step 6: Final answer
    x = 92,535.20

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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.