Home / 118,304.79-163,261.46-64,590.87

Finding the Fourth Proportional to 118,304.79, 163,261.46 and 64,590.87

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Solution

The fourth proportional to 118,304.79, 163,261.46 and 64,590.87 is: 89,135.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,304.79 : 163,261.46 = 64,590.87 : x
  2. Step 2: Convert to fraction form
    118,304.79/163,261.46 = 64,590.87/x
  3. Step 3: Cross multiply
    118,304.79x = 163,261.46 × 64,590.87
  4. Step 4: Simplify right side
    118,304.79x = 10,545,199,415.92
  5. Step 5: Solve for x
    x = 10,545,199,415.92/118,304.79
  6. Step 6: Final answer
    x = 89,135.86

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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.