Home / 118,409.40-163,403.06-64,693.26

Finding the Fourth Proportional to 118,409.40, 163,403.06 and 64,693.26

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Solution

The fourth proportional to 118,409.40, 163,403.06 and 64,693.26 is: 89,275.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,409.40 : 163,403.06 = 64,693.26 : x
  2. Step 2: Convert to fraction form
    118,409.40/163,403.06 = 64,693.26/x
  3. Step 3: Cross multiply
    118,409.40x = 163,403.06 × 64,693.26
  4. Step 4: Simplify right side
    118,409.40x = 10,571,076,645.38
  5. Step 5: Solve for x
    x = 10,571,076,645.38/118,409.40
  6. Step 6: Final answer
    x = 89,275.65

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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.