Home / 118,416.82-163,410.09-64,699.30

Finding the Fourth Proportional to 118,416.82, 163,410.09 and 64,699.30

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Solution

The fourth proportional to 118,416.82, 163,410.09 and 64,699.30 is: 89,282.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,416.82 : 163,410.09 = 64,699.30 : x
  2. Step 2: Convert to fraction form
    118,416.82/163,410.09 = 64,699.30/x
  3. Step 3: Cross multiply
    118,416.82x = 163,410.09 × 64,699.30
  4. Step 4: Simplify right side
    118,416.82x = 10,572,518,435.94
  5. Step 5: Solve for x
    x = 10,572,518,435.94/118,416.82
  6. Step 6: Final answer
    x = 89,282.24

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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.