Home / 142,332.39-196,415.26-77,798.72

Finding the Fourth Proportional to 142,332.39, 196,415.26 and 77,798.72

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Solution

The fourth proportional to 142,332.39, 196,415.26 and 77,798.72 is: 107,360.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,332.39 : 196,415.26 = 77,798.72 : x
  2. Step 2: Convert to fraction form
    142,332.39/196,415.26 = 77,798.72/x
  3. Step 3: Cross multiply
    142,332.39x = 196,415.26 × 77,798.72
  4. Step 4: Simplify right side
    142,332.39x = 15,280,856,113.01
  5. Step 5: Solve for x
    x = 15,280,856,113.01/142,332.39
  6. Step 6: Final answer
    x = 107,360.36

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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.