Home / 143,360.40-215,137.80-93,318.60

Finding the Fourth Proportional to 143,360.40, 215,137.80 and 93,318.60

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Solution

The fourth proportional to 143,360.40, 215,137.80 and 93,318.60 is: 140,041.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,360.40 : 215,137.80 = 93,318.60 : x
  2. Step 2: Convert to fraction form
    143,360.40/215,137.80 = 93,318.60/x
  3. Step 3: Cross multiply
    143,360.40x = 215,137.80 × 93,318.60
  4. Step 4: Simplify right side
    143,360.40x = 20,076,358,303.08
  5. Step 5: Solve for x
    x = 20,076,358,303.08/143,360.40
  6. Step 6: Final answer
    x = 140,041.17

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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.