Home / 118,322.09-163,291.13-64,612.10

Finding the Fourth Proportional to 118,322.09, 163,291.13 and 64,612.10

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Solution

The fourth proportional to 118,322.09, 163,291.13 and 64,612.10 is: 89,168.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,322.09 : 163,291.13 = 64,612.10 : x
  2. Step 2: Convert to fraction form
    118,322.09/163,291.13 = 64,612.10/x
  3. Step 3: Cross multiply
    118,322.09x = 163,291.13 × 64,612.10
  4. Step 4: Simplify right side
    118,322.09x = 10,550,582,497.61
  5. Step 5: Solve for x
    x = 10,550,582,497.61/118,322.09
  6. Step 6: Final answer
    x = 89,168.32

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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.