Home / 142,216.34-196,254.80-78,552.77

Finding the Fourth Proportional to 142,216.34, 196,254.80 and 78,552.77

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Solution

The fourth proportional to 142,216.34, 196,254.80 and 78,552.77 is: 108,400.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,216.34 : 196,254.80 = 78,552.77 : x
  2. Step 2: Convert to fraction form
    142,216.34/196,254.80 = 78,552.77/x
  3. Step 3: Cross multiply
    142,216.34x = 196,254.80 × 78,552.77
  4. Step 4: Simplify right side
    142,216.34x = 15,416,356,791.76
  5. Step 5: Solve for x
    x = 15,416,356,791.76/142,216.34
  6. Step 6: Final answer
    x = 108,400.75

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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.