Home / 98,078.77-135,313.89-64,106.87

Finding the Fourth Proportional to 98,078.77, 135,313.89 and 64,106.87

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Solution

The fourth proportional to 98,078.77, 135,313.89 and 64,106.87 is: 88,444.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,078.77 : 135,313.89 = 64,106.87 : x
  2. Step 2: Convert to fraction form
    98,078.77/135,313.89 = 64,106.87/x
  3. Step 3: Cross multiply
    98,078.77x = 135,313.89 × 64,106.87
  4. Step 4: Simplify right side
    98,078.77x = 8,674,549,634.89
  5. Step 5: Solve for x
    x = 8,674,549,634.89/98,078.77
  6. Step 6: Final answer
    x = 88,444.73

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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.