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Finding the Fourth Proportional to 143,810.26, 215,715.39 and 43,970.46

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Solution

The fourth proportional to 143,810.26, 215,715.39 and 43,970.46 is: 65,955.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,810.26 : 215,715.39 = 43,970.46 : x
  2. Step 2: Convert to fraction form
    143,810.26/215,715.39 = 43,970.46/x
  3. Step 3: Cross multiply
    143,810.26x = 215,715.39 × 43,970.46
  4. Step 4: Simplify right side
    143,810.26x = 9,485,104,927.38
  5. Step 5: Solve for x
    x = 9,485,104,927.38/143,810.26
  6. Step 6: Final answer
    x = 65,955.69

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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.