Home / 142,285.08-196,344.88-77,741.44

Finding the Fourth Proportional to 142,285.08, 196,344.88 and 77,741.44

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Solution

The fourth proportional to 142,285.08, 196,344.88 and 77,741.44 is: 107,278.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,285.08 : 196,344.88 = 77,741.44 : x
  2. Step 2: Convert to fraction form
    142,285.08/196,344.88 = 77,741.44/x
  3. Step 3: Cross multiply
    142,285.08x = 196,344.88 × 77,741.44
  4. Step 4: Simplify right side
    142,285.08x = 15,264,133,707.83
  5. Step 5: Solve for x
    x = 15,264,133,707.83/142,285.08
  6. Step 6: Final answer
    x = 107,278.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.