Home / 142,768.36-215,399.14-142,374.70

Finding the Fourth Proportional to 142,768.36, 215,399.14 and 142,374.70

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Solution

The fourth proportional to 142,768.36, 215,399.14 and 142,374.70 is: 214,805.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,768.36 : 215,399.14 = 142,374.70 : x
  2. Step 2: Convert to fraction form
    142,768.36/215,399.14 = 142,374.70/x
  3. Step 3: Cross multiply
    142,768.36x = 215,399.14 × 142,374.70
  4. Step 4: Simplify right side
    142,768.36x = 30,667,387,937.76
  5. Step 5: Solve for x
    x = 30,667,387,937.76/142,768.36
  6. Step 6: Final answer
    x = 214,805.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.