Home / 118,305.90-163,261.69-64,590.30

Finding the Fourth Proportional to 118,305.90, 163,261.69 and 64,590.30

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Solution

The fourth proportional to 118,305.90, 163,261.69 and 64,590.30 is: 89,134.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,305.90 : 163,261.69 = 64,590.30 : x
  2. Step 2: Convert to fraction form
    118,305.90/163,261.69 = 64,590.30/x
  3. Step 3: Cross multiply
    118,305.90x = 163,261.69 × 64,590.30
  4. Step 4: Simplify right side
    118,305.90x = 10,545,121,535.61
  5. Step 5: Solve for x
    x = 10,545,121,535.61/118,305.90
  6. Step 6: Final answer
    x = 89,134.37

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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.