Home / 143,315.40-215,070.30-93,273.60

Finding the Fourth Proportional to 143,315.40, 215,070.30 and 93,273.60

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Solution

The fourth proportional to 143,315.40, 215,070.30 and 93,273.60 is: 139,973.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,315.40 : 215,070.30 = 93,273.60 : x
  2. Step 2: Convert to fraction form
    143,315.40/215,070.30 = 93,273.60/x
  3. Step 3: Cross multiply
    143,315.40x = 215,070.30 × 93,273.60
  4. Step 4: Simplify right side
    143,315.40x = 20,060,381,134.08
  5. Step 5: Solve for x
    x = 20,060,381,134.08/143,315.40
  6. Step 6: Final answer
    x = 139,973.66

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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.