Home / 118,218.24-163,089.72-77,880.24

Finding the Fourth Proportional to 118,218.24, 163,089.72 and 77,880.24

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Solution

The fourth proportional to 118,218.24, 163,089.72 and 77,880.24 is: 107,440.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,218.24 : 163,089.72 = 77,880.24 : x
  2. Step 2: Convert to fraction form
    118,218.24/163,089.72 = 77,880.24/x
  3. Step 3: Cross multiply
    118,218.24x = 163,089.72 × 77,880.24
  4. Step 4: Simplify right side
    118,218.24x = 12,701,466,535.13
  5. Step 5: Solve for x
    x = 12,701,466,535.13/118,218.24
  6. Step 6: Final answer
    x = 107,440.84

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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.