Home / 143,835.40-215,666.70-73,851.40

Finding the Fourth Proportional to 143,835.40, 215,666.70 and 73,851.40

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Solution

The fourth proportional to 143,835.40, 215,666.70 and 73,851.40 is: 110,732.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,835.40 : 215,666.70 = 73,851.40 : x
  2. Step 2: Convert to fraction form
    143,835.40/215,666.70 = 73,851.40/x
  3. Step 3: Cross multiply
    143,835.40x = 215,666.70 × 73,851.40
  4. Step 4: Simplify right side
    143,835.40x = 15,927,287,728.38
  5. Step 5: Solve for x
    x = 15,927,287,728.38/143,835.40
  6. Step 6: Final answer
    x = 110,732.74

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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.