Home / 118,411.09-163,409.66-64,699.44

Finding the Fourth Proportional to 118,411.09, 163,409.66 and 64,699.44

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Solution

The fourth proportional to 118,411.09, 163,409.66 and 64,699.44 is: 89,286.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,411.09 : 163,409.66 = 64,699.44 : x
  2. Step 2: Convert to fraction form
    118,411.09/163,409.66 = 64,699.44/x
  3. Step 3: Cross multiply
    118,411.09x = 163,409.66 × 64,699.44
  4. Step 4: Simplify right side
    118,411.09x = 10,572,513,492.59
  5. Step 5: Solve for x
    x = 10,572,513,492.59/118,411.09
  6. Step 6: Final answer
    x = 89,286.51

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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.