Home / 118,407.77-163,400.82-64,691.63

Finding the Fourth Proportional to 118,407.77, 163,400.82 and 64,691.63

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Solution

The fourth proportional to 118,407.77, 163,400.82 and 64,691.63 is: 89,273.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,407.77 : 163,400.82 = 64,691.63 : x
  2. Step 2: Convert to fraction form
    118,407.77/163,400.82 = 64,691.63/x
  3. Step 3: Cross multiply
    118,407.77x = 163,400.82 × 64,691.63
  4. Step 4: Simplify right side
    118,407.77x = 10,570,664,572.13
  5. Step 5: Solve for x
    x = 10,570,664,572.13/118,407.77
  6. Step 6: Final answer
    x = 89,273.41

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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.