Home / 118,136.27-163,055.43-77,857.20

Finding the Fourth Proportional to 118,136.27, 163,055.43 and 77,857.20

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Solution

The fourth proportional to 118,136.27, 163,055.43 and 77,857.20 is: 107,460.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,136.27 : 163,055.43 = 77,857.20 : x
  2. Step 2: Convert to fraction form
    118,136.27/163,055.43 = 77,857.20/x
  3. Step 3: Cross multiply
    118,136.27x = 163,055.43 × 77,857.20
  4. Step 4: Simplify right side
    118,136.27x = 12,695,039,224.60
  5. Step 5: Solve for x
    x = 12,695,039,224.60/118,136.27
  6. Step 6: Final answer
    x = 107,460.98

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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.