Home / 143,313.10-214,969.65-72,454.30

Finding the Fourth Proportional to 143,313.10, 214,969.65 and 72,454.30

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Solution

The fourth proportional to 143,313.10, 214,969.65 and 72,454.30 is: 108,681.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,313.10 : 214,969.65 = 72,454.30 : x
  2. Step 2: Convert to fraction form
    143,313.10/214,969.65 = 72,454.30/x
  3. Step 3: Cross multiply
    143,313.10x = 214,969.65 × 72,454.30
  4. Step 4: Simplify right side
    143,313.10x = 15,575,475,512.00
  5. Step 5: Solve for x
    x = 15,575,475,512.00/143,313.10
  6. Step 6: Final answer
    x = 108,681.45

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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.