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Finding the Fourth Proportional to 118,804.80, 163,952.32 and 65,088.64

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Solution

The fourth proportional to 118,804.80, 163,952.32 and 65,088.64 is: 89,823.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,804.80 : 163,952.32 = 65,088.64 : x
  2. Step 2: Convert to fraction form
    118,804.80/163,952.32 = 65,088.64/x
  3. Step 3: Cross multiply
    118,804.80x = 163,952.32 × 65,088.64
  4. Step 4: Simplify right side
    118,804.80x = 10,671,433,533.64
  5. Step 5: Solve for x
    x = 10,671,433,533.64/118,804.80
  6. Step 6: Final answer
    x = 89,823.25

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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.