Home / 143,140.10-214,710.15-43,315.70

Finding the Fourth Proportional to 143,140.10, 214,710.15 and 43,315.70

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Solution

The fourth proportional to 143,140.10, 214,710.15 and 43,315.70 is: 64,973.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,140.10 : 214,710.15 = 43,315.70 : x
  2. Step 2: Convert to fraction form
    143,140.10/214,710.15 = 43,315.70/x
  3. Step 3: Cross multiply
    143,140.10x = 214,710.15 × 43,315.70
  4. Step 4: Simplify right side
    143,140.10x = 9,300,320,444.36
  5. Step 5: Solve for x
    x = 9,300,320,444.36/143,140.10
  6. Step 6: Final answer
    x = 64,973.55

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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.