Home / 143,801.10-215,701.65-132,428.70

Finding the Fourth Proportional to 143,801.10, 215,701.65 and 132,428.70

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Solution

The fourth proportional to 143,801.10, 215,701.65 and 132,428.70 is: 198,643.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,801.10 : 215,701.65 = 132,428.70 : x
  2. Step 2: Convert to fraction form
    143,801.10/215,701.65 = 132,428.70/x
  3. Step 3: Cross multiply
    143,801.10x = 215,701.65 × 132,428.70
  4. Step 4: Simplify right side
    143,801.10x = 28,565,089,097.36
  5. Step 5: Solve for x
    x = 28,565,089,097.36/143,801.10
  6. Step 6: Final answer
    x = 198,643.05

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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.